Table of Contents

Introduction 1 Part I: The Questions 5 Chapter 1: Basic Vocabulary 7 Chapter 2: Descriptive Statistics 11 Chapter 3: Graphing 21 Chapter 4: Random Variables and the Binomial Distribution 33 Chapter 5: The Normal Distribution 43 Chapter 6: The t-Distribution 51 Chapter 7: Sampling Distributions and the Central Limit Theorem 57 Chapter 8: Finding Room for a Margin of Error 71 Chapter 9: Confidence Intervals: Basics for Single Population Means and Proportions 75 Chapter 10: Confidence Inter vals for Two Population Means and Proportions 91 Chapter 11: Claims, Tests, and Conclusions 97 Chapter 12: Hypothesis Testing Basics for a Single Population Mean: z- and t-Tests 105 Chapter 13: Hypothesis Tests for One Proportion, Two Proportions, or Two Population Means 117 Chapter 14: Surveys 127 Chapter 15: Correlation 131 Chapter 16: Simple Linear Regression 139 Chapter 17: Two-Way Tables and Independence 153 Part II: The Answers 165 Chapter 18: Answers 167 Appendix: Tables for Reference 469 Index 481