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xiii | |
Preface |
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xvii | |
Getting Started |
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xxiii | |
Downloading the Companion Workbooks |
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xxiv | |
What Version of Excel Is Needed? |
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xxv | |
Watch Tutorial Videos on Demand |
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xxvi | |
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Chapter 1 Using Excel for Data Analysis |
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1 | (1) |
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1.1 Workbooks and Worksheets |
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2 | (2) |
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1.2 Activating Data Analysis Add-Ins |
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4 | (2) |
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1.3 Formulas, Functions, and Tools |
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6 | (3) |
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1.4 Defining and Using Names |
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9 | (2) |
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A Closer Look: Keyboard Shortcuts |
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11 | (1) |
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1.5 Separating Analysis from Data |
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11 | (1) |
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1.6 Printing and Saving Your Work |
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12 | (2) |
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1.7 Formatting Tables and Figures |
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14 | (1) |
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15 | (4) |
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19 | (4) |
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Chapter 2 Descriptive Statistics |
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23 | (20) |
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2.1 Identifying Levels of Measurement |
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24 | (1) |
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2.2 Describing Nominal Variables |
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24 | (5) |
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2.2.1 Frequency Distribution Tables |
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25 | (3) |
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28 | (1) |
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2.2.3 Central Tendency and Dispersion |
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28 | (1) |
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2.3 Describing Ordinal Variables |
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29 | (2) |
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2.3.1 High Dispersion Example |
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29 | (1) |
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2.3.2 Low Dispersion Example |
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30 | (1) |
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2.4 Describing Interval Variables |
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31 | (4) |
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2.4.1 Descriptive Statistics with the Data Analysis ToolPak |
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31 | (2) |
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33 | (2) |
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A Closer Look: Editing Charts with Purpose |
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35 | (1) |
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2.5 Case-Level Information |
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35 | (2) |
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37 | (6) |
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Chapter 3 Creating and Transforming Variables |
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43 | (20) |
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3.1 Using Formulas and Functions to Generate New Variables |
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44 | (1) |
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3.2 Creating Indicator Variables ("Dummy Variables") |
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45 | (3) |
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3.3 Recoding Interval-Level Variables into Simplified Categories |
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48 | (4) |
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3.4 Centering or Standardizing a Numeric Variable |
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52 | (5) |
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57 | (6) |
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Chapter 4 Making Comparisons |
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63 | (18) |
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4.1 Cross-Tabulation Analysis |
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64 | (3) |
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4.1.1 Comparing States Example |
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64 | (1) |
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4.1.2 Making Cross-Tabulations with Pivot Tables |
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65 | (2) |
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4.1.3 Interpreting Cross-Tabulations |
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67 | (1) |
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4.2 Mean Comparison Analysis |
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67 | (4) |
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4.2.1 Comparing Means with Pivot Tables |
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68 | (1) |
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4.2.2 Adding Counts and Standard Deviations |
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69 | (1) |
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4.2.3 Interpreting Results and Grouping Rows Together |
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70 | (1) |
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4.3 Making Comparisons with Interval-Level Independent Variables |
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71 | (1) |
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4.4 Creating Maps for Geographic Comparisons |
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72 | (3) |
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75 | (6) |
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Chapter 5 Graphing Relationships and Describing Patterns |
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81 | (24) |
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5.1 Graphing Relationships with Binary Dependent Variables |
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83 | (4) |
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5.1.1 Simple Bar Charts with Nominal Independent Variables |
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83 | (2) |
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5.1.2 Simple Line and Area Charts with Ordinal Independent Variables |
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85 | (1) |
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5.1.3 Charts with Interval-Level Independent Variables |
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86 | (1) |
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5.2 Graphing Relationships with Nominal-Level Dependent Variables |
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87 | (3) |
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5.2.1 Clustered Bar Charts with Nominal Independent Variables |
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87 | (1) |
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5.2.2 Multiple Line Charts with Ordinal Independent Variables |
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88 | (1) |
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5.2.3 Charts with Interval-Level Independent Variables |
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89 | (1) |
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5.3 Graphing Relationships with Ordinal-Level Dependent Variables |
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90 | (3) |
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5.3.1 Stacked Bar Charts with Nominal Independent Variables |
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90 | (1) |
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5.3.2 Stacked Area Charts with Ordinal Independent Variables |
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90 | (2) |
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5.3.3 Charts with interval-Level Independent Variables |
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92 | (1) |
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5.4 Graphing Relationships with Interval-Level Dependent Variables |
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93 | (6) |
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5.4.1 Box Plots with Nominal Independent Variables |
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93 | (2) |
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5.4.2 Line Charts with Ordinal Independent Variables |
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95 | (1) |
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5.4.3 Scatterplots with Interval-Level Independent Variables |
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96 | (3) |
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99 | (6) |
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Chapter 6 Random Assignment and Sampling |
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105 | (22) |
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106 | (2) |
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6.1.1 Two Groups with Equal Probability |
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107 | (1) |
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6.1.2 Multiple Groups with Varying Probabilities |
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107 | (1) |
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6.2 Analyzing the Results of an Experiment |
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108 | (3) |
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6.2.1 Assessing Random Assignment |
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108 | (2) |
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6.2.2 Evaluating the Effect of Treatment |
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110 | (1) |
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111 | (4) |
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6.3.1 Simple Random Samples with Replacement |
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111 | (1) |
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6.3.2 Simple Random Samples without Replacement |
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112 | (1) |
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6.3.3 Systematic Random Samples |
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113 | (2) |
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6.3.4 Clustered and Stratified Random Samples |
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115 | (1) |
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6.4 Selecting Cases for Qualitative Analysis |
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115 | (2) |
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6.4.1 Most Similar Systems |
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115 | (1) |
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6.4.2 Most Different Systems |
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116 | (1) |
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6.5 Entering Data from Experiments or Surveys |
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117 | (4) |
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121 | (6) |
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Chapter 7 Making Controlled Comparisons |
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127 | (38) |
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7.1 Cross-Tabulation Analysis with a Control Variable |
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128 | (3) |
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7.1.1 Start with a Simple Cross-Tabulation |
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128 | (1) |
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7.1.2 Controlled Comparisons with Pivot Tables |
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128 | (2) |
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7.1.3 Controlled Comparisons with Slicers |
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130 | (1) |
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7.1.4 Interpreting Controlled Cross-Tabulations |
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131 | (1) |
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7.2 Graphing Controlled Comparisons with Categorical Dependent Variables |
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131 | (3) |
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7.3 Mean Comparison Analysis with a Control Variable |
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134 | (2) |
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7.3.1 Adding a Control Variable to Mean Comparison Tables |
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134 | |
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7.3.2 Using Slicers for Controlled Mean Comparisons |
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131 | (4) |
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7.3.3 Interpreting Controlled Mean Comparisons |
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135 | (1) |
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7.4 Visualizing Controlled Mean Comparisons |
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136 | (1) |
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7.5 Controlled Comparisons with an Interval-Level Control Variable |
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136 | (3) |
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139 | (26) |
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Chapter 8 Foundations of Statistical Inference |
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165 | (2) |
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8.1 Estimating a Population Proportion |
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146 | (4) |
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8.1.1 Sample of Marbles Example |
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146 | (2) |
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8.1.2 Simulating Many Sample Proportions with Excel |
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148 | (1) |
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A Closer Look: Using Probability Distributions to Simulate Raw Data |
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149 | (1) |
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8.2 Estimating a Population Mean |
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150 | (2) |
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A Closer Look: Estimating the Population Standard Deviation with Sample Data |
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151 | (1) |
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8.3 Expected Shape of Sampling Distributions |
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152 | (5) |
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8.3.1 Central Limit Theorem and the Normal Distribution |
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153 | (1) |
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8.3.2 Normal Distribution of Sample Proportions |
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154 | |
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8.3.3 Normal Distribution of Sample Means |
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150 | (5) |
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8.3.4 The Standard Normal Distribution |
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155 | (1) |
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8.3.5 Empirical Rule (68-95-99 Rule) |
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156 | (1) |
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8.4 Confidence Intervals and Margins of Error |
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157 | (3) |
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8.6.1 Critical Values for Confidence Intervals |
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157 | (1) |
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8.4.2 Excel Worksheet for the Confidence Interval of a Proportion |
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158 | (1) |
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8.4.3 Excel Worksheet for the Confidence Interval of a Mean |
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159 | |
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8.4.4 Excel's Confidence Functions |
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155 | (5) |
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8.5 Student's t-Distribution: When You're Not Completely Normal |
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160 | (3) |
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8.5.1 The t-Distribution's Role in Inferential Statistics |
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160 | (1) |
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8.5.2 Critical Values of t-Distributions |
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161 | (2) |
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163 | (4) |
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Chapter 9 Hypothesis Tests with One or Two Samples |
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167 | (24) |
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9.1 Role of the Null Hypothesis |
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168 | (1) |
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9.2 Testing a Hypothesis about One Sample Proportion |
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169 | (3) |
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9.2.1 Start with Descriptive Statistics |
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169 | (1) |
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9.2.2 Confidence Interval Approach |
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169 | (1) |
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9.2.3 P-Value Approach Using the Z Score |
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170 | (2) |
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9.3 Testing the Difference between Two Sample Proportions |
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172 | (3) |
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9.3.1 Start by Comparing Proportions |
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172 | (1) |
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9.3.2 Confidence Interval for the Difference of Proportions |
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173 | (1) |
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9.3.3 Difference of Proportions Test |
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174 | (1) |
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9.4 Testing a Hypothesis about One Sample Mean |
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175 | (4) |
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9.4.1 Start with Descriptive Statistics |
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176 | (1) |
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A Closer Look: Treating Census as a Sample |
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177 | (1) |
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9.6.2 Confidence Interval Approach |
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177 | (1) |
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9.4.3 P-Value Approach Using the t-Statistic |
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178 | (1) |
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9.5 Testing the Difference between Two Sample Means |
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179 | (8) |
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9.5.1 Start by Comparing Means |
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179 | (1) |
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9.5.2 Confidence Intervals for the Difference of Means |
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180 | (1) |
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9.5.3 Difference of Means Tests |
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181 | (3) |
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9.5.4 Difference of Means Tests with the Data Analysis ToolPak |
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184 | (2) |
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9.5.5 Difference of Means Tests with the T.TEST Function |
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186 | (1) |
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187 | (4) |
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Chapter 10 Chi-Square Test and Analysis of Variance |
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191 | (26) |
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10.1 Chi-Square Test of Independence |
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192 | (6) |
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10.1.1 How the Chi-Square Test Works |
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193 | (1) |
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10.1.2 Creating Tables of Observed and Expected Frequencies |
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193 | (2) |
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10.1.3 Excel's Chi-Square Functions |
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195 | (1) |
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10.1.4 Opinion about Divorce Laws and Marital Status Example |
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196 | (1) |
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A Closer Look: Other Applications of Chi-Square Tests |
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197 | (1) |
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10.2 Measuring the Strength of Association between Categorical Variables |
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198 | (5) |
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198 | (2) |
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200 | (2) |
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202 | (1) |
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A Closer Look: Reporting and Interpreting Chi-Square Test Results |
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203 | (1) |
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10.3 Analysis of Variance [ ANOVA) |
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203 | (6) |
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204 | (1) |
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10.3.2 Legal Quality and Judicial Selection Method Example |
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205 | (2) |
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A Closer Look: More Applications of ANOVA |
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207 | (2) |
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209 | (8) |
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Chapter 11 Correlation and Bivariate Regression |
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217 | (22) |
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11.1 Correlation Analysis |
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218 | (3) |
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11.1.1 Excel Functions for Correlation Analysis |
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219 | (1) |
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11.1.2 Correlation Analysis with the Data Analysis ToolPak |
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219 | (1) |
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11.1.3 Interpreting Correlation Coefficients |
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220 | (1) |
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A Closer Look: Other Types and Applications of Correlation Analysis |
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221 | (1) |
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11.2 Bivariate Regression |
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221 | (6) |
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11.2.1 Organizing Data for Regression Analysis with Excel |
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222 | (1) |
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A Closer Look: What to Do about Missing Data |
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223 | (1) |
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11.2.2 Regression with the Data Analysis ToolPak |
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224 | (1) |
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11.2.3 Interpreting Results |
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224 | (3) |
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A Closer Look: R-Squared and Adjusted R-Squared: What's the Difference? |
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227 | (1) |
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11.3 Creating Scatterplots for Bivariate Regressions |
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227 | (6) |
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11.3.1 Adding Regression Lines to Scatterplots |
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229 | (1) |
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11.3.2 Using Regression Lines to Make Informed Predictions |
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230 | (1) |
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A Closer Look: What If a Scatterplot Doesn't Show a Linear Relationship? |
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230 | (1) |
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11.3.3 Editing Scatterplots for Clarity and Use of Space |
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230 | (3) |
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233 | (6) |
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Chapter 12 Multiple Regression Analysis |
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239 | (26) |
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12.1 Multiple Regression Example |
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240 | (4) |
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12.1.1 Organizing Data for Multiple Regression Analysis with Excel |
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240 | (2) |
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12.1.2 Multiple Regression with the Data Analysis ToolPak |
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242 | (1) |
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12.1.3 Interpreting Multiple Regression Results |
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242 | (1) |
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A Closer Look: Reporting Regression Results in Tables |
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243 | (1) |
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12.2 Regression with Multiple Dummy Variables |
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244 | (5) |
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12.2.1 Regression Equations with Dummy Variables |
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244 | (1) |
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12.2.2 State Smoking Rates and Cigarette Taxes Example |
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245 | (1) |
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12.2.3 Creating Multiple Dummy Variables |
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245 | (2) |
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12.2.4 Estimating and Interpreting the Multiple Regression Equation |
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247 | (1) |
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A Closer Look: Changing the Reference Category |
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248 | (1) |
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12.3 Interaction Effects in Multiple Regression |
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249 | (3) |
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12.3.1 Multiple Regression with an Interaction Term Example |
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249 | (1) |
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12.3.2 Organizing Data and Creating Interaction Terms |
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250 | (1) |
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12.3.3 Using the Regression Tool in the Data Analysis ToolPak |
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251 | (1) |
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12.3.4 Interpreting Interaction Effects in Results |
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252 | (1) |
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12.4 Visualizing Multiple Regression with a Bubble Plot |
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252 | (2) |
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12.5 Graphing Interaction Relationships |
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254 | (5) |
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12.5.1 Organizing Data to Plot Distinct Scatterplot Markers |
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255 | (1) |
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12.5.2 Creating a Scatterplot with Distinct Regression Lines |
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256 | (3) |
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259 | (6) |
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Chapter 1 Analyzing Regression Residuals |
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265 | (24) |
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13.1 Expected Values, Observed Values, and Regression Residuals |
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266 | (3) |
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13.1.1 Calculating Residuals for Observations |
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266 | (1) |
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13.1.2 Visualizing Residuals on Scatterplots |
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267 | (1) |
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13.1.3 Squared Residuals Measure Model Fit |
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268 | (1) |
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13.2 Assumptions about Regression Residuals |
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269 | (1) |
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13.3 Residuals Options with the Regression Tool |
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270 | (3) |
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13.3.1 Tables of Residuals |
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270 | (2) |
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13.3.2 Plots of Residuals |
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272 | (1) |
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13.4 Analyzing Graphs of Residuals |
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273 | (4) |
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13.6.1 Two Multiple Regression Examples |
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273 | (1) |
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13.4.2 Histograms of Standardized Residuals |
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274 | (1) |
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13.4.3 Scatterplots of Residuals and Expected Values |
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275 | (1) |
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13.4.4 Quantile-Quantile Plots |
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276 | (1) |
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13.5 Statistical Tests about Regression Residuals |
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277 | (4) |
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13.5.1 Testing the Assumption That Residuals Are Normally Distributed |
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278 | (1) |
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13.5.2 Testing the Constant Variance Assumption |
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279 | (2) |
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13.6 What If You Diagnose Problems with Residuals? |
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281 | (2) |
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283 | (6) |
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Chapter 14 Logistic Regression |
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289 | (26) |
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14.1 Odds, Logged Odds, and Probabilities |
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290 | (1) |
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14.2 Estimating a Logistic Regression Model |
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291 | (7) |
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14.2.1 Logistic Regression Equation and Example |
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292 | (1) |
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14.2.2 Organizing Data for Logistic Regression Analysis |
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292 | (1) |
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14.2.3 Using the Real Statistics Add-In for Logistic Regression |
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293 | (1) |
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14.2.4 Interpreting Logistic Regression Coefficients |
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294 | (1) |
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14.2.5 Interpreting Odds Ratios |
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295 | (1) |
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14.2.6 How Well Does the Model Fit the Data? |
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296 | (2) |
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14.3 Logistic Regression with Multiple Independent Variables |
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298 | (2) |
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14.3.1 Example Equation with Multiple Independent Variables |
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298 | (1) |
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14.3.2 Organizing Data and Using the Real Statistics Add-In |
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298 | (2) |
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14.3.3 Interpreting Results |
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300 | (1) |
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14.4 Graphing Predicted Probabilities with One Independent Variable |
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300 | (3) |
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14.5 Graphing Predicted Probabilities with Multiple Independent Variables |
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303 | (6) |
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14.5.1 Plotting Marginal Effects at Representative Values |
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303 | (2) |
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14.5.2 Plotting Marginal Effects at the Means |
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305 | (4) |
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309 | (6) |
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Chapter 15 Doing Your Own Political Analysis |
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315 | (20) |
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15.1 Doable Research Ideas |
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316 | (2) |
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15.1.1 Economic Performance and Election Outcomes |
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316 | (1) |
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15.1.2 Electoral Turnout in Comparative Perspective |
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317 | (1) |
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15.1.3 Religion and Politics |
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317 | (1) |
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318 | (1) |
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15.1.5 Women and Politics |
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318 | (1) |
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15.1.6 Replicate a Published Paper |
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318 | (1) |
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15.2 Importing Data into Excel |
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318 | (8) |
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15.2.1 Microsoft Excel Datasets |
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319 | (3) |
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322 | (3) |
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15.2.3 Other Supported Data Types |
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325 | (1) |
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326 | (5) |
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15.3.1 The Research Question |
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327 | (1) |
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328 | (1) |
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15.3.3 Data, Hypotheses, and Analysis |
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328 | (1) |
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15.3.6 Conclusions and Implications |
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329 | (2) |
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331 | (4) |
Appendix, Table A-1 Variables in the Debate Experiment Workbook's Dataset in Alphabetical Order |
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335 | (1) |
Appendix, Table A-2 Variables in the Presidential Elections Workbook s Dataset in Alphabetical Order |
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336 | (1) |
Appendix, Table A-3 Variables in the States Dataset by Topic |
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337 | (9) |
Appendix, Table A-4 Variables in the World Dataset by Topic |
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346 | |