Statistics From Data to Decision

A Note to Students from the Authors vii

1 A CASE STUDY OF STATISTICS IN ACTION 2

2 EXPLORING DISTRIBUTIONS 22

3 RELATIONSHIPS BETWEEN TWO QUANTITATIVE VARIABLES 100

4 SAMPLE SURVEYS AND EXPERIMENTS 208

5 SAMPLING DISTRIBUTIONS 266

6 PROBABILITY MODELS 326

7 PROBABILITY DISTRIBUTIONS 378

8 INFERENCE FOR PROPORTIONS 412

9 INFERENCE FOR MEANS 478

10 CHI-SQUARE TESTS 576

11 INFERENCE FOR REGRESSION 628

12 STATISTICS IN ACTION: CASE STUDIES 678

Appendix: Statistical Tables 699

Table A: Standard Normal Probabilities 699

Table B: t-Distribution Critical Values 701

Table C: Chi-Square Distribution Critical Values 702

Table D: Random Digits 703

Glossary 704

Brief Answers to Selected Problems 712

Index 743

Photo Credits 752

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