Preface to the Second Edition |
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xxvii | |
Preface to the First Edition |
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xxxiii | |
Acknowledgments |
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xxxvii | |
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1 Reliability Concepts and Reliability Data |
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1 | (20) |
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1 | (2) |
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1.1.1 Quality and Reliability |
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1 | (1) |
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1.1.2 Reasons for Collecting Reliability Data |
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2 | (1) |
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1.1.3 Distinguishing Features of Reliability Data |
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2 | (1) |
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1.2 Examples of Reliability Data |
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3 | (9) |
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1.2.1 Failure-Time Data with No Explanatory Variables |
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4 | (5) |
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1.2.2 Failure-Time Data with Explanatory Variables |
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9 | (2) |
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1.2.3 Degradation Data with No Explanatory Variables |
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11 | (1) |
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1.2.4 Degradation Data with Explanatory Variables |
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12 | (1) |
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1.3 General Models for Reliability Data |
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12 | (3) |
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1.3.1 Reliability Studies and Processes |
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12 | (1) |
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1.3.2 Causes of Failure and Degradation Leading to Failure |
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13 | (1) |
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1.3.3 Environmental Effects on Reliability |
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13 | (1) |
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1.3.4 Definition of Time Scale |
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14 | (1) |
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1.3.5 Definitions of Time Origin and Failure Time |
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14 | (1) |
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1.4 Models for Time to Event Versus Sequences of Recurrent Events |
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15 | (2) |
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1.4.1 Modeling Times to an Event |
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16 | (1) |
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1.4.2 Modeling a Sequence of Recurrent Events |
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16 | (1) |
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1.5 Strategy for Data Collection, Modeling, and Analysis |
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17 | (4) |
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1.5.1 Planning a Reliability Study |
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17 | (1) |
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1.5.2 Strategy for Data Analysis and Modeling |
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17 | (1) |
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Bibliographic Notes and Related Topics |
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18 | (1) |
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19 | (2) |
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2 Models, Censoring, and Likelihood for Failure-Time Data |
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21 | (20) |
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2.1 Models for Continuous Failure-Time Processes |
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21 | (6) |
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2.1.1 Failure-Time Probability Distribution Functions |
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22 | (3) |
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2.1.2 The Quantile Function and Distribution Quantiles |
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25 | (1) |
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2.1.3 Distribution of Remaining Life |
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25 | (2) |
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2.2 Models for Discrete Data from a Continuous Process |
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27 | (3) |
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2.2.1 Multinomial Failure-Time Model |
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28 | (1) |
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2.2.2 Multinomial Failure-Time Model cdf |
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28 | (2) |
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30 | (1) |
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2.3.1 Censoring Mechanisms |
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30 | (1) |
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2.3.2 Important Assumptions on Censoring Mechanisms |
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30 | (1) |
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2.3.3 Informative Censoring |
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31 | (1) |
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31 | (10) |
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2.4.1 Likelihood-Based Statistical Methods |
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31 | (1) |
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2.4.2 Specifying the Likelihood Function |
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31 | (1) |
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2.4.3 Contributions to the Likelihood Function |
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32 | (2) |
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2.4.4 Form of the Constant Term C |
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34 | (1) |
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2.4.5 Likelihood Terms for General Reliability Data |
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35 | (1) |
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2.4.6 Other Likelihood Terms |
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36 | (1) |
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Bibliographic Notes and Related Topics |
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36 | (1) |
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37 | (4) |
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3 Nonparametric Estimation for Failure-Time Data |
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41 | (25) |
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3.1 Estimation from Complete Data |
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42 | (1) |
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3.2 Estimation from Singly-Censored Interval Data |
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42 | (2) |
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3.3 Basic Ideas of Statistical Inference |
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44 | (1) |
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3.3.1 The Sampling Distribution of F(ti) |
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44 | (1) |
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3.3.2 Confidence Intervals |
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44 | (1) |
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3.4 Confidence Intervals from Complete or Singly-Censored Data |
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45 | (3) |
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3.4.1 Pointwise Binomial-Based Conservative Confidence Interval for F(ti) |
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45 | (1) |
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3.4.2 Pointwise Binomial-Based Jeffreys Approximate Confidence Interval for F(ti) |
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46 | (1) |
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3.4.3 Pointwise Wald Approximate Confidence Interval for F(ti) |
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46 | (2) |
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3.5 Estimation from Multiply-Censored Data |
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48 | (2) |
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3.6 Pointwise Confidence Intervals from Multiply-Censored Data |
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50 | (4) |
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3.6.1 Approximate Variance of F(ti) |
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50 | (1) |
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3.6.2 Greenwood's Formula |
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51 | (1) |
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3.6.3 Pointwise Wald Confidence Interval for F(ti) |
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51 | (3) |
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3.7 Estimation from Multiply-Censored Data with Exact Failures |
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54 | (1) |
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3.8 Nonparametric Simultaneous Confidence Bands |
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54 | (3) |
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54 | (1) |
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3.8.2 Nonparametric Simultaneous Large-Sample Approximate Confidence Bands for F(t) |
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55 | (2) |
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3.8.3 Determining the Time Range for Nonparametric Simultaneous Confidence Bands for F(t) |
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57 | (1) |
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57 | (9) |
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Bibliographic Notes and Related Topics |
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59 | (1) |
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60 | (6) |
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4 Some Parametric Distributions Used in Reliability Applications |
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66 | (29) |
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66 | (1) |
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4.2 Quantities of Interest in Reliability Applications |
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67 | (1) |
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4.3 Location-Scale and Log-Location-Scale Distributions |
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68 | (1) |
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4.4 Exponential Distribution |
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69 | (1) |
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4.4.1 CDF, PDF, Moments, HF, and Quantile Functions |
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69 | (1) |
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4.4.2 Motivation and Applications |
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69 | (1) |
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70 | (2) |
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4.5.1 CDF, PDF, Moments, and Quantile Function |
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70 | (1) |
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4.5.2 Motivation and Applications |
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71 | (1) |
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4.6 Lognormal Distribution |
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72 | (1) |
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4.6.1 CDF, PDF, Moments, and Quantile Function |
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72 | (1) |
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4.6.2 Motivation and Applications |
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73 | (1) |
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4.7 Smallest Extreme Value Distribution |
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73 | (1) |
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4.7.1 CDF, PDF, Moments, HF, and Quantile Functions |
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73 | (1) |
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4.7.2 Motivation and Applications |
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74 | (1) |
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74 | (2) |
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4.8.1 CDF, Moments, and Quantile Function |
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74 | (1) |
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4.8.2 Alternative Parameterization |
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75 | (1) |
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4.8.3 Alternative Parameterization CDF, PDF, HF, and Quantile Function |
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76 | (1) |
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4.8.4 Motivation and Applications |
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76 | (1) |
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4.9 Largest Extreme Value Distribution |
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76 | (1) |
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4.9.1 CDF, PDF, Moments, HF, and Quantile Function |
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76 | (1) |
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4.9.2 Motivation and Applications |
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77 | (1) |
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4.10 Frechet Distribution |
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77 | (2) |
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4.10.1 CDF, Moments, and Quantile Function |
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77 | (1) |
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4.10.2 Alternative Parameterization |
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78 | (1) |
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4.10.3 CDF, PDF, and Quantile Function in the Alternative Parameterization |
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79 | (1) |
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4.10.4 Motivation and Applications |
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79 | (1) |
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4.11 Logistic Distribution |
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79 | (1) |
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4.11.1 CDF, PDF, Moments, and Quantile Function |
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79 | (1) |
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4.11.2 Similarity to the Normal Distribution |
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80 | (1) |
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4.12 Loglogistic Distribution |
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80 | (2) |
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80 | (1) |
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4.12.2 Moments and Quantile Function |
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81 | (1) |
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4.12.3 Motivation and Applications |
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81 | (1) |
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4.13 Generalized Gamma Distribution |
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82 | (1) |
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82 | (1) |
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4.13.2 Moments and Quantile Function |
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82 | (1) |
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4.13.3 Special Cases of the Generalized Gamma Distribution |
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83 | (1) |
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4.14 Distributions with a Threshold Parameter |
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83 | (1) |
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4.15 Other Methods of Deriving Failure-Time Distributions |
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84 | (3) |
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4.15.1 Discrete Mixture Distributions |
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85 | (1) |
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4.15.2 Continuous Mixture Distributions |
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85 | (1) |
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4.15.3 Power Distributions |
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86 | (1) |
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4.16 Parameters and Parameterization |
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87 | (1) |
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4.17 Generating Pseudorandom Observations from a Specified Distribution |
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87 | (8) |
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4.17.1 Uniform Pseudorandom Number Generator |
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87 | (1) |
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4.17.2 Pseudorandom Observations from Continuous Distributions |
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88 | (1) |
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4.17.3 Efficient Generation of Pseudorandom Censored Samples |
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88 | (1) |
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4.17.4 Pseudorandom Observations from Discrete Distributions |
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89 | (1) |
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Bibliographic Notes and Related Topics |
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89 | (1) |
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90 | (5) |
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5 System Reliability Concepts and Methods |
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95 | (16) |
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5.1 Nonrepairable System Reliability Metrics |
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96 | (1) |
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96 | (1) |
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5.1.2 Other Nonrepairable System Reliability Metrics |
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96 | (1) |
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96 | (3) |
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5.2.1 Probability of Failure for a Series System Having Components with Independent Failure Times |
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96 | (1) |
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5.2.2 Importance of Part Count in Product Design |
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97 | (1) |
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5.2.3 Series System of Independent Components Having Weibull Distributions with the Same Shape Parameter |
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98 | (1) |
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5.2.4 Effect of Positive Dependency in a Two-Component Series System |
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98 | (1) |
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99 | (2) |
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5.3.1 The Effect of Parallel Redundancy in Improving (Sub)System Reliability |
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100 | (1) |
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5.3.2 Effect of Positive Dependency in a Two-Component Parallel-Redundant System |
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100 | (1) |
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5.3.3 Another Kind of Redundancy |
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101 | (1) |
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5.4 Series-Parallel Systems |
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101 | (2) |
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5.4.1 Series-Parallel Systems with System-Level Redundancy |
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102 | (1) |
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5.4.2 Series-Parallel System Structure with Component-Level Redundancy |
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102 | (1) |
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5.5 Other System Structures |
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103 | (1) |
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5.5.1 Bridge-System Structures |
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103 | (1) |
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5.5.2 k-out-of-m System Structure |
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103 | (1) |
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5.5.3 k-out-of-m: F (Failed) Systems |
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104 | (1) |
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5.6 Multistate System Reliability Models |
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104 | (7) |
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5.6.1 Nonrepairable Multistate Systems |
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105 | (1) |
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5.6.2 Repairable Multistate Systems |
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105 | (1) |
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5.6.3 Repairable System Availability |
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105 | (1) |
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5.6.4 Repairable System and Mean Time between Failures |
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106 | (1) |
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Bibliographic Notes and Related Topics |
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106 | (1) |
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107 | (4) |
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111 | (18) |
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112 | (1) |
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6.2 Linearizing Location-Scale-Based Distributions |
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112 | (2) |
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6.2.1 Linearizing the Exponential Distribution cdf |
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112 | (1) |
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6.2.2 Linearizing the Normal Distribution cdf |
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112 | (1) |
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6.2.3 Linearizing the Lognormal Distribution cdf |
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113 | (1) |
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6.2.4 Linearizing the Weibull Distribution cdf |
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113 | (1) |
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6.2.5 Linearizing the cdf of Other Location-Scale or Log-Location-Scale Distributions |
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114 | (1) |
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6.3 Graphical Goodness of Fit |
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114 | (1) |
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6.4 Probability Plotting Positions |
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115 | (6) |
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6.4.1 Criteria for Choosing Plotting Positions |
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115 | (1) |
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6.4.2 Choice of Plotting Positions |
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116 | (4) |
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6.4.3 Summary of Probability Plotting Methods |
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120 | (1) |
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6.5 Notes on the Application of Probability Plotting |
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121 | (8) |
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6.5.1 Using Simulation to Help Interpret Probability Plots |
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121 | (1) |
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6.5.2 Possible Reason for a Bend in a Probability Plot |
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122 | (3) |
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Bibliographic Notes and Related Topics |
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125 | (1) |
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126 | (3) |
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7 Parametric Likelihood Fitting Concepts: Exponential Distribution |
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129 | (21) |
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130 | (2) |
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7.1.1 Maximum Likelihood Background |
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130 | (1) |
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131 | (1) |
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7.2 Parametric Likelihood |
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132 | (2) |
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7.2.1 Probability of the Data |
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132 | (1) |
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7.2.2 Likelihood Function and its Maximum |
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133 | (1) |
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7.3 Likelihood Confidence Intervals for θ |
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134 | (2) |
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7.3.1 Confidence Intervals Based on a Profile Likelihood |
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134 | (1) |
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7.3.2 Relationship between Confidence Intervals and Significance Tests |
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135 | (1) |
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7.4 Wald (Normal-Approximation) Confidence Intervals for θ |
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136 | (2) |
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7.5 Confidence Intervals for Functions of θ |
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138 | (1) |
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7.5.1 Confidence Intervals for the Arrival Rate |
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138 | (1) |
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7.5.2 Confidence Intervals for F(t; θ) |
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138 | (1) |
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7.6 Comparison of Confidence Interval Procedures |
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139 | (1) |
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7.7 Likelihood for Exact Failure Times |
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139 | (2) |
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7.7.1 Correct Likelihood for Observations Reported as Exact Failures |
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139 | (1) |
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7.7.2 Using the Density Approximation for Observations Reported as Exact Failures |
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139 | (1) |
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7.7.3 ML Estimates for the Exponential Distribution θ Based on the Density Approximation |
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140 | (1) |
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7.7.4 Confidence Intervals for the Exponential Distribution with Complete Data or Type 2 (Failure) Censoring |
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140 | (1) |
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7.8 Effect of Sample Size on Confidence Interval Width and the Likelihood Shape |
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141 | (2) |
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7.8.1 Effect of Sample Size on Confidence Interval Width |
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141 | (1) |
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7.8.2 Effect of Sample Size on the Likelihood Shape |
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142 | (1) |
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7.9 Exponential Distribution Inferences with no Failures |
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143 | (7) |
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Bibliographic Notes and Related Topics |
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145 | (1) |
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146 | (4) |
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8 Maximum Likelihood Estimation for Log-Location-Scale Distributions |
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150 | (28) |
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8.1 Likelihood Definition |
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151 | (3) |
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8.1.1 The Likelihood for Location-Scale Distributions |
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151 | (1) |
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8.1.2 The Likelihood for Log-Location-Scale Distributions |
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151 | (3) |
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8.1.3 Akaike Information Criterion |
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154 | (1) |
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8.2 Likelihood Confidence Regions and Intervals |
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154 | (5) |
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8.2.1 Joint Confidence Regions for μ and σ |
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154 | (1) |
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8.2.2 Likelihood Confidence Intervals for μ |
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155 | (1) |
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8.2.3 Likelihood Confidence Intervals for σ |
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155 | (1) |
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8.2.4 Likelihood Confidence Intervals for Functions of μ and σ |
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156 | (2) |
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8.2.5 Relationship between Confidence Intervals and Significance Tests |
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158 | (1) |
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8.3 Wald Confidence Intervals |
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159 | (6) |
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8.3.1 Variance-Covariance Matrix of Parameter Estimates |
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159 | (1) |
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8.3.2 Wald Confidence Intervals for Model Parameters |
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160 | (2) |
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8.3.3 Wald Confidence Intervals for Functions of μ and σ |
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162 | (3) |
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8.4 The ML Estimate may not go Through the Points |
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165 | (1) |
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8.5 Estimation with a Given Shape Parameter |
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166 | (12) |
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8.5.1 Estimation for a Weibull/Smallest Extreme Value Distribution with Given a |
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166 | (2) |
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8.5.2 Estimation for a Weibull/Smallest Extreme Value Distribution with Given β = 1/σ and Zero Failures |
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168 | (2) |
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Bibliographic Notes and Related Topics |
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170 | (1) |
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171 | (7) |
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9 Parametric Bootstrap and Other Simulation-Based Confidence Interval Methods |
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178 | (28) |
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179 | (1) |
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179 | (1) |
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179 | (1) |
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9.2 Methods for Generating Bootstrap Samples and Obtaining Bootstrap Estimates |
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180 | (6) |
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9.2.1 Bootstrap Resampling |
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180 | (1) |
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9.2.2 Fractional-Random-Weight Bootstrap Sampling |
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181 | (2) |
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9.2.3 Parametric Bootstrap Samples and Bootstrap Estimates |
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183 | (1) |
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9.2.4 How to Choose Which Bootstrap Sampling Method to Use |
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184 | (1) |
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9.2.5 Choosing the Number of Bootstrap Samples |
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185 | (1) |
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9.3 Bootstrap Confidence Interval Methods |
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186 | (6) |
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9.3.1 Calculation of Quantiles of a Bootstrap Distribution |
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186 | (1) |
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9.3.2 The Simple Percentile Method |
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187 | (1) |
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9.3.3 The BC Percentile Method |
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188 | (1) |
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9.3.4 The Bootstrap-t Method |
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189 | (3) |
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9.4 Bootstrap Confidence Intervals Based on Pivotal Quantities |
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192 | (5) |
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192 | (1) |
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9.4.2 Pivotal Quantity Confidence Intervals for the Location Parameter of a Location-Scale Distribution or the Scale Parameter of a Log-Location-Scale Distribution |
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193 | (2) |
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9.4.3 Pivotal Quantity Confidence Intervals for the Scale Parameter of a Location-Scale Distribution or the Shape Parameter of a Log-Location-Scale Distribution |
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195 | (1) |
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9.4.4 Pivotal Quantity Confidence Intervals for the p Quantile of a Location-Scale or a Log-Location-Scale Distribution |
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196 | (1) |
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9.5 Confidence Intervals Based on Generalized Pivotal Quantities |
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197 | (9) |
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9.5.1 Generalized Pivotal Quantities for μ and σ of a Location-Scale Distribution and for Functions of μ and σ |
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198 | (1) |
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9.5.2 Confidence Intervals for Tail Probabilities for (Log-)Location-Scale Distributions |
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199 | (1) |
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9.5.3 Confidence Intervals for the Mean of a Log-Location-Scale Distribution |
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200 | (2) |
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Bibliographic Notes and Related Topics |
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202 | (1) |
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203 | (3) |
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10 An Introduction to Bayesian Statistical Methods for Reliability |
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206 | (33) |
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10.1 Bayesian Inference: Overview |
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207 | (4) |
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207 | (1) |
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10.1.2 The Relationship between Non-Bayesian Likelihood Inference and Bayesian Inference |
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207 | (1) |
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10.1.3 Bayes' Theorem and Bayesian Data Analysis |
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208 | (1) |
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10.1.4 The Need for Prior Information |
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209 | (1) |
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209 | (2) |
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10.2 Bayesian Inference: An Illustrative Example |
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211 | (9) |
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10.2.1 Specification of Prior Information |
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211 | (2) |
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10.2.2 Characterizing the Joint Posterior Distribution via Simulation |
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213 | (1) |
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10.2.3 Comparison of Joint Posterior Distributions Based on Weakly Informative and Informative Prior Information on the Weibull Shape Parameter (3 |
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213 | (2) |
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10.2.4 Generating Sample Draws via Simple Simulation |
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215 | (1) |
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10.2.5 Using the Sample Draws to Construct Bayesian Point Estimates and Credible Intervals |
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215 | (5) |
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10.3 More About Prior Information and Specification of a Prior Distribution |
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220 | (4) |
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10.3.1 Noninformative Prior Distributions |
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220 | (1) |
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10.3.2 Weakly Informative and Informative Prior Distributions |
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221 | (1) |
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10.3.3 Using a Range to Specify a Prior Distribution |
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222 | (1) |
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10.3.4 Whose Prior Distribution Should We Use? |
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223 | (1) |
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10.3.5 Sources of Prior Information |
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223 | (1) |
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10.4 Implementing Bayesian Analyses Using MCMC Simulation |
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224 | (5) |
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10.4.1 Basic Ideas of MCMC Simulation |
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224 | (1) |
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10.4.2 Risks of Misuse and Diagnostics |
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225 | (2) |
|
|
227 | (1) |
|
|
228 | (1) |
|
10.5 Using Prior Information to Estimate the Service-Life Distribution of a Rocket Motor |
|
|
229 | (10) |
|
|
229 | (2) |
|
10.5.2 Rocket-Motor Prior Information |
|
|
231 | (1) |
|
10.5.3 Rocket-Motor Bayesian Estimation Results |
|
|
231 | (1) |
|
10.5.4 Credible Interval for the Proportion of Healthy Rocket Motors after 20 or 30 Years in the Stockpile |
|
|
232 | (1) |
|
Bibliographic Notes and Related Topics |
|
|
233 | (2) |
|
|
235 | (4) |
|
11 Special Parametric Models |
|
|
239 | (28) |
|
11.1 Extending Maximum Likelihood Methods |
|
|
239 | (1) |
|
11.1.1 Likelihood for Other Distributions and Models |
|
|
239 | (1) |
|
11.1.2 Confidence Intervals for Other Distributions and Models |
|
|
240 | (1) |
|
11.2 Fitting the Generalized Gamma Distribution |
|
|
240 | (4) |
|
11.3 Fitting the Birnbaum--Saunders Distribution |
|
|
244 | (2) |
|
11.3.1 Birnbaum--Saunders Distribution |
|
|
244 | (1) |
|
11.3.2 Birnbaum--Saunders ML Estimation |
|
|
244 | (2) |
|
11.4 The Limited Failure Population Model |
|
|
246 | (1) |
|
11.4.1 The LFP Likelihood Function and Its Maximum |
|
|
246 | (1) |
|
11.4.2 Profile Likelihood Functions and LR-Based Confidence Intervals for μ, σ, and p |
|
|
246 | (1) |
|
11.5 Truncated Data and Truncated Distributions |
|
|
247 | (8) |
|
11.5.1 Examples of Left Truncation |
|
|
248 | (2) |
|
11.5.2 Likelihood with Left Truncation |
|
|
250 | (1) |
|
11.5.3 Nonparametric Estimation with Left Truncation |
|
|
250 | (1) |
|
11.5.4 ML Estimation with Left-Truncated Data |
|
|
251 | (1) |
|
11.5.5 Examples of Right Truncation |
|
|
252 | (1) |
|
11.5.6 Likelihood with Right (and Left) Truncation |
|
|
253 | (1) |
|
11.5.7 Nonparametric Estimation with Right (and Left) Truncation |
|
|
253 | (1) |
|
11.5.8 A Trick to Handle Truncated Observations |
|
|
254 | (1) |
|
11.6 Fitting Distributions that Have a Threshold Parameter |
|
|
255 | (12) |
|
11.6.1 Estimation with a Given Threshold Parameter |
|
|
255 | (1) |
|
11.6.2 Probability Plotting Methods |
|
|
255 | (1) |
|
11.6.3 Likelihood Methods |
|
|
256 | (3) |
|
11.6.4 Summary of Results of Fitting Models to Skewed Distributions |
|
|
259 | (3) |
|
Bibliographic Notes and Related Topics |
|
|
262 | (1) |
|
|
263 | (4) |
|
12 Comparing Failure-Time Distributions |
|
|
267 | (22) |
|
12.1 Background and Motivation |
|
|
267 | (1) |
|
12.1.1 Reasons for Comparing Failure-Time Distributions |
|
|
267 | (1) |
|
12.1.2 Motivating Examples |
|
|
268 | (1) |
|
12.2 Nonparametric Comparisons |
|
|
268 | (3) |
|
12.2.1 Graphical Nonparametric Comparisons |
|
|
268 | (1) |
|
12.2.2 Nonparametric Comparison Tests |
|
|
268 | (3) |
|
12.3 Parametric Comparison of Two Groups by Fitting Separate Distributions |
|
|
271 | (3) |
|
12.4 Parametric Comparison of Two Groups by Fitting Separate Distributions with Equal σ Values |
|
|
274 | (2) |
|
12.5 Parametric Comparison of More than Two Groups |
|
|
276 | (13) |
|
12.5.1 Comparison Using Separate Analyses |
|
|
276 | (1) |
|
12.5.2 Comparison Using Equal-σ Values |
|
|
276 | (3) |
|
12.5.3 Comparison Using Simultaneous Confidence Intervals |
|
|
279 | (5) |
|
Bibliographic Notes and Related Topics |
|
|
284 | (1) |
|
|
284 | (5) |
|
13 Planning Life Tests for Estimation |
|
|
289 | (23) |
|
|
289 | (2) |
|
|
289 | (2) |
|
13.2 Simple Formulas to Determine the Sample Size Needed |
|
|
291 | (5) |
|
13.2.1 Motivation for Use of Large-Sample Approximations of Test Plan Properties |
|
|
291 | (1) |
|
13.2.2 Estimating an Unrestricted Quantile and Other Unrestricted Quantities |
|
|
292 | (1) |
|
13.2.3 Plots of Quantile Variance Factors |
|
|
292 | (2) |
|
13.2.4 Sample Size Formula for Estimating an Unrestricted Quantile and Other Unrestricted Quantities |
|
|
294 | (1) |
|
13.2.5 Estimating a Positive Quantile and Other Positive Quantities |
|
|
294 | (1) |
|
13.2.6 Sample Size Formula for Estimating a Positive Quantile and Other Positive Quantities |
|
|
295 | (1) |
|
13.2.7 Meeting the Precision Criterion |
|
|
295 | (1) |
|
13.3 Use of Simulation in Test Planning |
|
|
296 | (7) |
|
|
296 | (1) |
|
13.3.2 Assessing the Effect of Test Length on Precision |
|
|
296 | (6) |
|
13.3.3 Assessing the Tradeoff between Sample Size and Test Length |
|
|
302 | (1) |
|
13.3.4 Uncertainty in Planning Values |
|
|
302 | (1) |
|
13.4 Approximate Variance of ML Estimators and Computing Variance Factors |
|
|
303 | (1) |
|
13.4.1 A General Large-Sample Approximation for the Variances of ML Estimators |
|
|
303 | (1) |
|
13.4.2 A General Large-Sample Approximation for the Variance of the ML Estimator of a Function of the Parameters |
|
|
303 | (1) |
|
13.5 Variance Factors for (Log-)Location-Scale Distributions |
|
|
304 | (3) |
|
13.5.1 Large-Sample Approximate Variance-Covariance Matrix for Location-Scale Parameters |
|
|
304 | (1) |
|
13.5.2 Variance Factors for (Log-)Location-Scale Distribution Parameter Estimators |
|
|
305 | (1) |
|
13.5.3 Variance Factors for Functions of (Log-)Location-Scale Distribution Parameter Estimators |
|
|
306 | (1) |
|
13.5.4 Variance Factors to Estimate a Quantile When T is Log-Location-Scale |
|
|
306 | (1) |
|
|
307 | (5) |
|
13.6.1 Type 2 (Failure) Censoring |
|
|
307 | (1) |
|
13.6.2 Variance Factors for Location-Scale Parameters and Multiple Censoring |
|
|
308 | (1) |
|
13.6.3 Test Planning for Distributions that Are Not Log-Location-Scale |
|
|
308 | (1) |
|
Bibliographic Notes and Related Topics |
|
|
308 | (1) |
|
|
309 | (3) |
|
14 Planning Reliability Demonstration Tests |
|
|
312 | (11) |
|
14.1 Introduction to Demonstration Testing |
|
|
312 | (2) |
|
14.1.1 Criteria for Doing a Demonstration |
|
|
312 | (1) |
|
14.1.2 Basic Ideas of Demonstration Testing |
|
|
313 | (1) |
|
14.1.3 Data and Distribution |
|
|
313 | (1) |
|
14.1.4 The Important Relationship between S(td) and S(tc) |
|
|
313 | (1) |
|
14.1.5 The Demonstration Test Decision Rule |
|
|
314 | (1) |
|
14.2 Finding the Required Sample Size or Test-Length Factor |
|
|
314 | (4) |
|
14.2.1 Required Sample Size n for a Given Test-Length Factor k |
|
|
314 | (1) |
|
14.2.2 Required Test-Length Factor k for a Given Sample Size n |
|
|
314 | (1) |
|
14.2.3 Minimum-Sample-Size Test |
|
|
314 | (1) |
|
14.2.4 Minimum-Sample-Size Test for the Weibull Distribution |
|
|
315 | (3) |
|
14.3 Probability of Successful Demonstration |
|
|
318 | (5) |
|
|
318 | (1) |
|
14.3.2 Special Result for the Weibull Minimum-Sample-Size Test |
|
|
319 | (1) |
|
Bibliographic Notes and Related Topics |
|
|
320 | (1) |
|
|
321 | (2) |
|
15 Prediction of Failure Times and the Number of Future Field Failures |
|
|
323 | (32) |
|
15.1 Basic Concepts of Statistical Prediction |
|
|
324 | (1) |
|
15.1.1 Motivation and Prediction Applications |
|
|
324 | (1) |
|
15.1.2 What is Needed to Compute a Prediction Interval? |
|
|
325 | (1) |
|
15.2 Probability Prediction Intervals (θ Known) |
|
|
325 | (1) |
|
15.3 Statistical Prediction Interval (θ Estimated) |
|
|
326 | (2) |
|
15.3.1 Coverage Probability Concepts |
|
|
326 | (1) |
|
15.3.2 Relationship between One-Sided Prediction Bounds and Two-Sided Prediction Intervals |
|
|
327 | (1) |
|
15.3.3 Prediction Based on a Pivotal Quantity |
|
|
327 | (1) |
|
15.4 Plug-In Prediction and Calibration |
|
|
328 | (4) |
|
15.4.1 The Plug-in Method for Computing an Approximate Statistical Prediction Interval |
|
|
328 | (1) |
|
15.4.2 Calibrating Plug-in Statistical Prediction Bounds |
|
|
329 | (1) |
|
15.4.3 The Calibration-Bootstrap Prediction Method |
|
|
330 | (1) |
|
15.4.4 Finding a Calibration Curve by Computing Coverage Probabilities for the Plug-in Method |
|
|
330 | (2) |
|
15.4.5 Assessing the Amount of Monte Carlo Error |
|
|
332 | (1) |
|
15.5 Computing and Using Predictive Distributions |
|
|
332 | (4) |
|
15.5.1 Definition and Use of a Predictive Distribution |
|
|
332 | (1) |
|
15.5.2 A Simple Method for Computing a Predictive Distribution |
|
|
333 | (1) |
|
15.5.3 Alternative Methods for Computing a Predictive Distribution |
|
|
333 | (2) |
|
15.5.4 A General Alternative Method of Computing Prediction Intervals Using the Calibration Bootstrap and an Extra Layer of Simulation |
|
|
335 | (1) |
|
15.6 Prediction of the Number of Future Failures from a Single Group |
|
|
336 | (2) |
|
15.6.1 Problem Background |
|
|
336 | (1) |
|
15.6.2 Distribution of the Predictand, Point Prediction, and the Plug-in Prediction Method |
|
|
336 | (1) |
|
15.6.3 Correcting the Plug-in Method |
|
|
337 | (1) |
|
15.7 Predicting the Number of Future Failures from Multiple Groups |
|
|
338 | (5) |
|
15.7.1 Distribution of the Number of Future Failures |
|
|
339 | (1) |
|
15.7.2 Plug-in Prediction Bounds and Intervals for the Number of Future Failures |
|
|
340 | (2) |
|
15.7.3 Approximations for the Poisson-Binomial Distribution |
|
|
342 | (1) |
|
15.7.4 Improved Prediction Bounds and Intervals for the Number of Future Failures |
|
|
342 | (1) |
|
15.8 Bayesian Prediction Methods |
|
|
343 | (2) |
|
15.8.1 Motivation for the Use of Bayesian Prediction Methods |
|
|
343 | (1) |
|
15.8.2 Computing a Bayesian Predictive Distribution |
|
|
344 | (1) |
|
15.9 Choosing a Distribution for Making Predictions |
|
|
345 | (10) |
|
Bibliographic Notes and Related Topics |
|
|
346 | (2) |
|
|
348 | (7) |
|
16 Analysis of Data with More than One Failure Mode |
|
|
355 | (22) |
|
16.1 An Introduction to Multiple Failure Modes |
|
|
355 | (2) |
|
|
355 | (1) |
|
16.1.2 Multiple Failure Modes Data |
|
|
356 | (1) |
|
16.2 Model for Multiple Failure Modes Data |
|
|
357 | (2) |
|
16.2.1 Association between Failure Times of Different Failure Modes |
|
|
357 | (1) |
|
16.2.2 The Assumption of Independence |
|
|
358 | (1) |
|
16.2.3 System Failure-Time Distribution with All Failure Modes Active |
|
|
358 | (1) |
|
16.3 Multiple Failure Modes Estimation |
|
|
359 | (4) |
|
16.3.1 Maximum Likelihood Estimation with Multiple Failure Modes |
|
|
359 | (4) |
|
16.3.2 Importance of Accounting for Failure-Mode Information |
|
|
363 | (1) |
|
16.4 The Effect of Eliminating a Failure Mode |
|
|
363 | (3) |
|
16.5 Subdistribution Functions and Prediction for Individual Failure Modes |
|
|
366 | (2) |
|
16.5.1 Subdistribution Functions |
|
|
366 | (1) |
|
16.5.2 Predictions for Individual Failure Modes |
|
|
367 | (1) |
|
16.6 More About the Nonidentifiability of Dependence Among Failure Modes |
|
|
368 | (9) |
|
Bibliographic Notes and Related Topics |
|
|
369 | (1) |
|
|
370 | (7) |
|
17 Failure-Time Regression Analysis |
|
|
377 | (32) |
|
|
378 | (1) |
|
17.1.1 Motivating Example |
|
|
378 | (1) |
|
17.1.2 Failure-Time Regression Models |
|
|
378 | (1) |
|
17.2 Simple Linear Regression Models |
|
|
379 | (3) |
|
17.2.1 Location-Scale Regression Model and Likelihood |
|
|
379 | (1) |
|
17.2.2 Log-Location-Scale Regression Model and Likelihood |
|
|
380 | (2) |
|
17.3 Standard Errors and Confidence Intervals for Regression Models |
|
|
382 | (3) |
|
17.3.1 Standard Errors and Confidence Intervals for Parameters |
|
|
382 | (1) |
|
17.3.2 Standard Errors and Confidence Intervals for Distribution Quantities at Specific Explanatory Variable Conditions |
|
|
383 | (2) |
|
17.4 Regression Model with Quadratic μ and Nonconstant σ |
|
|
385 | (4) |
|
17.4.1 Quadratic Regression Relationship for μ and a Constant σ Parameter |
|
|
386 | (1) |
|
17.4.2 Quadratic Regression Model with Nonconstant Shape Parameter σ |
|
|
387 | (1) |
|
17.4.3 Further Comments on the Use of Empirical Regression Models |
|
|
388 | (1) |
|
17.4.4 Comments on Numerical Methods and Parameterization |
|
|
388 | (1) |
|
17.5 Checking Model Assumptions |
|
|
389 | (3) |
|
17.5.1 Definition of Residuals |
|
|
389 | (1) |
|
17.5.2 Cox-Snell Residuals |
|
|
390 | (1) |
|
17.5.3 Regression Diagnostics |
|
|
391 | (1) |
|
17.6 Empirical Regression Models and Sensitivity Analysis |
|
|
392 | (5) |
|
17.7 Models with Two or More Explanatory Variables |
|
|
397 | (12) |
|
17.7.1 Model-Free Graphical Analysis of Two-Variable Regression Data |
|
|
398 | (1) |
|
17.7.2 Two-Variable Regression Model without Interaction |
|
|
399 | (1) |
|
17.7.3 Two-Variable Regression Model with Interaction |
|
|
400 | (3) |
|
Bibliographic Notes and Related Topics |
|
|
403 | (1) |
|
|
404 | (5) |
|
18 Analysis of Accelerated Life-Test Data |
|
|
409 | (29) |
|
18.1 Introduction to Accelerated Life Tests |
|
|
409 | (2) |
|
18.1.1 Motivation and Background for Accelerated Testing |
|
|
409 | (1) |
|
18.1.2 Different Methods of Acceleration |
|
|
410 | (1) |
|
18.2 Overview of ALT Data Analysis Methods |
|
|
411 | (1) |
|
|
411 | (1) |
|
18.2.2 Strategy for Analyzing ALT Data |
|
|
412 | (1) |
|
18.3 Temperature-Accelerated Life Tests |
|
|
412 | (9) |
|
|
412 | (1) |
|
18.3.2 Scatterplot of ALT Data |
|
|
413 | (3) |
|
18.3.3 The Arrhenius Acceleration Model |
|
|
416 | (2) |
|
18.3.4 Checking Other Model Assumptions |
|
|
418 | (1) |
|
18.3.5 ML Estimates at Use Conditions |
|
|
419 | (2) |
|
18.4 Bayesian Analysis of a Temperature-Accelerated Life Test |
|
|
421 | (2) |
|
|
421 | (1) |
|
18.4.2 Parameterization of the Arrhenius Model |
|
|
421 | (1) |
|
18.4.3 Prior Distribution Specification in an ALT |
|
|
422 | (1) |
|
18.4.4 Bayesian Analysis of the Device-A ALT Data |
|
|
422 | (1) |
|
18.5 Voltage-Accelerated Life Test |
|
|
423 | (15) |
|
18.5.1 Voltage and Voltage-Stress Acceleration |
|
|
424 | (1) |
|
18.5.2 The Inverse-Power Relationship |
|
|
425 | (5) |
|
18.5.3 ML Estimates at Use Conditions for the M-P Insulation |
|
|
430 | (1) |
|
18.5.4 Physical Motivation for the Inverse-Power Relationship for Voltage-Stress Acceleration |
|
|
430 | (1) |
|
18.5.5 A Generalization of the Inverse-Power Relationship |
|
|
431 | (1) |
|
Bibliographic Notes and Related Topics |
|
|
432 | (1) |
|
|
433 | (5) |
|
19 More Topics on Accelerated Life Testing |
|
|
438 | (27) |
|
19.1 Accelerated Life Tests with Interval-Censored Data |
|
|
438 | (6) |
|
19.1.1 Maximum Likelihood Estimation at Individual Test Conditions |
|
|
439 | (2) |
|
19.1.2 ML Estimates of the Arrhenius-Lognormal Model Parameters with Interval-Censored Data |
|
|
441 | (1) |
|
19.1.3 Fitting an ALT Model with a Given Relationship Slope |
|
|
442 | (1) |
|
19.1.4 Bayesian Analysis of Interval-Censored ALT Data |
|
|
442 | (2) |
|
19.2 Accelerated Life Tests with Two Accelerating Variables |
|
|
444 | (4) |
|
19.3 Multifactor Experiments with a Single Accelerating Variable |
|
|
448 | (4) |
|
19.4 Practical Suggestions for Drawing Conclusions from ALT Data |
|
|
452 | (2) |
|
19.4.1 Predicting Product Performance |
|
|
452 | (1) |
|
19.4.2 Drawing Conclusions from ALTs |
|
|
453 | (1) |
|
|
453 | (1) |
|
19.5 Pitfalls of Accelerated Life Testing |
|
|
454 | (2) |
|
19.5.1 Pitfall: Extraneous Failure Modes Caused by Too Much Acceleration |
|
|
454 | (1) |
|
19.5.2 Pitfall: Masked Failure Modes |
|
|
455 | (1) |
|
19.5.3 Pitfall: Faulty Comparison |
|
|
455 | (1) |
|
19.6 Other Kinds of Accelerated Tests |
|
|
456 | (9) |
|
19.6.1 Accelerated Tests with Step-Stress and Varying Stress |
|
|
456 | (1) |
|
19.6.2 Continuous Product Operation to Accelerate Testing |
|
|
457 | (1) |
|
19.6.3 Qualitative Accelerated Life Tests |
|
|
458 | (1) |
|
|
459 | (1) |
|
Bibliographic Notes and Related Topics |
|
|
459 | (2) |
|
|
461 | (4) |
|
20 Degradation Modeling and Destructive Degradation Data Analysis |
|
|
465 | (31) |
|
20.1 Degradation Reliability Data and Degradation Path Models: Introduction and Background |
|
|
466 | (2) |
|
|
466 | (1) |
|
20.1.2 Examples of Degradation Data |
|
|
466 | (1) |
|
20.1.3 Limitations of Degradation Data |
|
|
467 | (1) |
|
20.2 Description and Mechanistic Motivation for Degradation Path Models |
|
|
468 | (3) |
|
20.2.1 Shapes of Degradation Paths |
|
|
468 | (1) |
|
20.2.2 A Statistical Model for Degradation Data without Explanatory Variables |
|
|
469 | (1) |
|
20.2.3 A Statistical Model for Degradation Data with Explanatory Variables |
|
|
470 | (1) |
|
20.2.4 Degradation Path Models |
|
|
470 | (1) |
|
20.3 Models Relating Degradation and Failure |
|
|
471 | (1) |
|
20.3.1 Soft Failures: Specified Degradation Level |
|
|
471 | (1) |
|
20.3.2 Hard Failures: Joint Distribution of Degradation and Failure Level |
|
|
472 | (1) |
|
20.4 DDT Background, Motivating Examples, and Estimation |
|
|
472 | (5) |
|
|
472 | (1) |
|
20.4.2 Motivating Examples |
|
|
472 | (2) |
|
20.4.3 Transformations for ADDT Data |
|
|
474 | (1) |
|
20.4.4 Fitting a Statistical Model to ADDT Data |
|
|
474 | (1) |
|
20.4.5 Degradation Model Checking |
|
|
475 | (2) |
|
20.5 Failure-Time Distributions Induced from DDT Models and Failure-Time Inferences |
|
|
477 | (2) |
|
20.5.1 A General Approach to Obtaining the Failure-Time Distribution for DDT Models |
|
|
477 | (1) |
|
20.5.2 Failure-Time Inferences for Model 2 |
|
|
478 | (1) |
|
|
479 | (2) |
|
20.6.1 Transformations for ADDT Data 4 |
|
|
79 | (400) |
|
20.6.2 Fitting Separate Models to the Different Levels of the Accelerating Variable |
|
|
479 | (2) |
|
20.7 Fitting an Acceleration Model to ADDT Data |
|
|
481 | (2) |
|
20.7.1 A Model and Likelihood for ADDT Data |
|
|
481 | (1) |
|
20.7.2 ADDT Model Checking |
|
|
482 | (1) |
|
20.8 ADDT Failure-Time Inferences |
|
|
483 | (2) |
|
20.8.1 Failure-Time cdf for Model 6 |
|
|
483 | (2) |
|
20.8.2 Failure-Time Distribution Quantiles for Model 6 |
|
|
485 | (1) |
|
20.9 ADDT Analysis Using an Informative Prior Distribution |
|
|
485 | (2) |
|
20.10 An ADDT with an Asymptotic Model |
|
|
487 | (9) |
|
20.10.1 ADDT Data with an Asymptote |
|
|
487 | (1) |
|
20.10.2 Finding a Model for ADDT Data with an Asymptote |
|
|
488 | (1) |
|
20.10.3 Fitting an ADDT Model with an Asymptote |
|
|
489 | (1) |
|
20.10.4 ADDT Model Checking with an Asymptotic Model |
|
|
489 | (1) |
|
20.10.5 Failure-Time cdf for Model 8 |
|
|
490 | (1) |
|
20.10.6 Failure-Time Distribution Quantiles for Model 8 |
|
|
491 | (1) |
|
Bibliographic Notes and Related Topics |
|
|
492 | (1) |
|
|
493 | (3) |
|
21 Repeated-Measures Degradation Modeling and Analysis |
|
|
496 | (26) |
|
21.1 RMDT Models and Data |
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|
496 | (4) |
|
21.1.1 RMDT Motivating Example |
|
|
497 | (1) |
|
21.1.2 Repeated-Measures Degradation Models |
|
|
498 | (1) |
|
21.1.3 Models for Variation in Degradation and Failure Times |
|
|
498 | (2) |
|
21.2 RMDT Parameter Estimation |
|
|
500 | (3) |
|
21.2.1 RMDT Models with Random Parameters |
|
|
500 | (1) |
|
21.2.2 The Likelihood for Random-Parameter Models |
|
|
501 | (1) |
|
21.2.3 Bayesian Estimation with Random Parameters |
|
|
501 | (2) |
|
21.2.4 RMDT Modeling and Diagnostics |
|
|
503 | (1) |
|
21.3 The Relationship between Degradation and Failure Time for RMDT Models |
|
|
503 | (4) |
|
21.3.1 Time-to-First-Crossing Distribution |
|
|
503 | (1) |
|
21.3.2 A General Approach |
|
|
504 | (1) |
|
21.3.3 Analytical Solution for F(t) |
|
|
504 | (2) |
|
21.3.4 Numerical Evaluation of F(t) |
|
|
506 | (1) |
|
21.3.5 Monte Carlo Evaluation of F(t) |
|
|
506 | (1) |
|
21.4 Estimation of a Failure-Time CDF from RMDT Data |
|
|
507 | (1) |
|
21.5 Models for ARMDT Data |
|
|
508 | (1) |
|
|
509 | (4) |
|
21.6.1 Estimation of Failure Probabilities, Distribution Quantiles, and Other Functions of Model Parameters for an ARMDT Model |
|
|
510 | (1) |
|
21.6.2 ARMDT Analysis Using an Informative Prior Distribution |
|
|
511 | (2) |
|
21.7 ARMDT with Multiple Accelerating Variables |
|
|
513 | (9) |
|
Bibliographic Notes and Related Topics |
|
|
515 | (2) |
|
|
517 | (5) |
|
22 Analysis of Repairable System and Other Recurrent Events Data |
|
|
522 | (15) |
|
|
522 | (2) |
|
22.1.1 Recurrent Events Data |
|
|
522 | (1) |
|
22.1.2 A Nonparametric Model for Recurrent Events Data |
|
|
523 | (1) |
|
22.2 Nonparametric Estimation of the MCF |
|
|
524 | (5) |
|
22.2.1 Nonparametric Model Assumptions |
|
|
524 | (1) |
|
22.2.2 Point Estimate of the MCF |
|
|
525 | (1) |
|
22.2.3 Confidence Intervals for Λ |
|
|
525 | (4) |
|
22.3 Comparison of two Samples of Recurrent Events Data |
|
|
529 | (1) |
|
22.4 Recurrent Events Data with Multiple Event Types |
|
|
530 | (7) |
|
Bibliographic Notes and Related Topics |
|
|
533 | (1) |
|
|
534 | (3) |
|
23 Case Studies and Further Applications |
|
|
537 | (22) |
|
23.1 Analysis of Hard Drive Field Data |
|
|
537 | (3) |
|
23.1.1 Data and Background |
|
|
537 | (2) |
|
|
539 | (1) |
|
23.1.3 GLFP Likelihood for the Backblaze-14 Data |
|
|
539 | (1) |
|
23.1.4 Bayesian Estimation of the Backblaze-14 GLFP Model Parameters |
|
|
539 | (1) |
|
23.2 Reliability in the Presence of Stress--Strength Interference |
|
|
540 | (5) |
|
23.2.1 Definition of Stress--Strength Reliability |
|
|
540 | (1) |
|
23.2.2 Distributions of Stress and Strength |
|
|
541 | (2) |
|
23.2.3 ML Estimates and Confidence Intervals for Stress and Strength Reliability |
|
|
543 | (1) |
|
23.2.4 Bayesian Estimation for Stress and Strength Reliability |
|
|
544 | (1) |
|
23.3 Predicting Field Failures with a Limited Failure Population |
|
|
545 | (8) |
|
23.3.1 ML Analysis of the Device-J Field Data |
|
|
545 | (3) |
|
23.3.2 Bayesian Prediction for the Number of Future Device-J Failures |
|
|
548 | (5) |
|
23.4 Analysis of Accelerated Life-Test Data When There is a Batch Effect |
|
|
553 | (6) |
|
23.4.1 Kevlar Pressure Vessels Background and Data |
|
|
553 | (1) |
|
23.4.2 Model for the Kevlar Pressure Vessels ALT Data |
|
|
553 | (1) |
|
23.4.3 Bayesian Estimation and Reliability Inferences |
|
|
554 | (2) |
|
23.4.4 Bayesian Estimation of System Reliability |
|
|
556 | (2) |
|
Bibliographic Notes and Related Topics |
|
|
558 | (1) |
|
|
559 | (63) |
|
|
565 | (7) |
|
B Other Useful Distributions and Probability Distribution Computations |
|
|
572 | (16) |
|
|
572 | (1) |
|
B.1 Important Characteristics of Distribution Functions |
|
|
572 | (1) |
|
B.1.1 Density and Probability Mass Functions |
|
|
573 | (1) |
|
B.1.2 Cumulative Distribution Function |
|
|
573 | (1) |
|
|
573 | (1) |
|
B.2 Distributions and R Computations |
|
|
574 | (1) |
|
B.3 Continuous Distributions |
|
|
575 | (1) |
|
B.3.1 Common Location-Scale and Log-Location-Scale Distributions |
|
|
575 | (3) |
|
|
578 | (1) |
|
B.3.3 Uniform Distribution |
|
|
579 | (1) |
|
B.3.4 Loguniform Distribution |
|
|
579 | (1) |
|
|
579 | (1) |
|
B.3.6 Chi-Square Distribution |
|
|
580 | (1) |
|
B.3.7 Truncated Normal Distribution |
|
|
580 | (1) |
|
B.3.8 Student's t-Distribution |
|
|
581 | (1) |
|
B.3.9 Location-Scale t-Distribution |
|
|
582 | (1) |
|
B.3.10 Half Location-Scale t-Distribution |
|
|
582 | (1) |
|
B.3.11 Bivariate Normal Distribution |
|
|
583 | (1) |
|
B.3.12 Dirichlet Distribution |
|
|
584 | (1) |
|
B.4 Discrete Distributions |
|
|
585 | (1) |
|
B.4.1 Binomial Distribution |
|
|
585 | (1) |
|
B.4.2 Poisson Distribution |
|
|
586 | (1) |
|
B.4.3 Poisson-Binomial Distribution |
|
|
587 | (1) |
|
C Some Results from Statistical Theory |
|
|
588 | (21) |
|
|
588 | (1) |
|
C.1 The CDFS and PDFS of Functions of Random Variables |
|
|
588 | (1) |
|
C.1.1 Transformation of Continuous Random Variables |
|
|
589 | (5) |
|
C.2 Statistical Error Propagation---The Delta Method |
|
|
594 | (2) |
|
C.3 Likelihood and Fisher Information Matrices |
|
|
596 | (1) |
|
C.4 Regularity Conditions |
|
|
596 | (1) |
|
C.4.1 Regularity Conditions for Location-Scale Distributions |
|
|
597 | (1) |
|
C.4.2 General Regularity Conditions |
|
|
597 | (1) |
|
C.4.3 Asymptotic Theory for Nonregular Models |
|
|
598 | (1) |
|
C.5 Convergence in Distribution |
|
|
598 | (1) |
|
C.5.1 Central Limit Theorem and Other Examples of Convergence in Distribution |
|
|
599 | (1) |
|
C.6 Convergence in Probability |
|
|
600 | (1) |
|
C.7 Outline of General ML Theory |
|
|
601 | (1) |
|
C.7.1 Asymptotic Distribution of ML Estimators |
|
|
601 | (1) |
|
C.7.2 Asymptotic Variance--Covariance Matrix for Test Planning |
|
|
601 | (1) |
|
C.7.3 Asymptotic Distribution of Functions of ML Estimators |
|
|
601 | (1) |
|
C.7.4 Estimating the Variance--Covariance Matrix of ML Estimates |
|
|
602 | (1) |
|
C.7.5 Likelihood Ratios and Profile Likelihoods |
|
|
602 | (1) |
|
C.7.6 Approximate Likelihood-Ratio-Based Confidence Regions or Confidence Intervals for the Model Parameters |
|
|
603 | (1) |
|
C.7.7 Approximate Confidence Regions and Intervals Based on Asymptotic Normality of ML Estimators |
|
|
603 | (1) |
|
C.8 Inference with Zero or Few Failures |
|
|
604 | (1) |
|
C.8.1 Exponential Distribution Inference with Zero or Few Failures |
|
|
604 | (2) |
|
C.8.2 Weibull Distribution Inference with Given β and Zero or Few Failures |
|
|
606 | (1) |
|
C.9 The Bonferroni Inequality |
|
|
607 | (2) |
|
|
609 | (13) |
References |
|
622 | (25) |
Index |
|
647 | |