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1 The Statistical Imagination 1

2 Statistical Analysis:Error Management and Control 32

3 Charts and Graphs:A Picture Says a Thousand Words 72

4 Measuring Averages 96

5 Measuring Dispersion or Spread in a Distribution of Scores 122

6 Probability Theory and the Normal Probability Distribution 154

7 Using Probability Theory to Produce Sampling Distributions 189

8 Parameter Estimation Using Confidence Intervals 221

9 Hypothesis Testing 249

10 Single-Sample Hypothesis Tests:Establishing the Representativeness of Samples 288

11 Bivariate Relationships:t-Test for Comparing the Means of Two Groups 334

12 Analysis of Variance:Differences among Means of Three or More Groups 376

13 Nominal Variables:The Chi-Square and Binomial Distributions 418

14 Correlation and Regression:Part 1:Concepts and Calculations 460

15 Correlation and Regression:Part 2:Hypothesis Testing and Aspects of a Relationship 492

16 Rank-Order Correlation between Two Ordinal Variables 524

Appendix A Review of Basic Mathematical Operations 562

Appendix B Statistical Probability Tables 571

Appendix C Answers to Selected Chapter Exercises 580

References 591

Index 595