Health and Numbers: A Problems-Based Introduction to Biostatistics Book

1 Proportions, Rates, and Ratios 1

2 Organization, Summarization, and Presentation of Data 52

3 Probability and Probability Models 98

4 Confidence Estimation 135

5 Introduction to Hypothesis Testing 171

6 Comparison of Population Proportions 186

7 Comparison of Population Means 215

8 Regression Analysis 243

Bibliography 271

Appendix A Table of Random Numbers 276

Appendix B Area Under the Standard Normal Curve 277

Appendix C Percentiles of the t Distributions 278

Appendix D Percentiles of Chi-square Distributions 279

Appendix E Percentiles of the F Distributions 280

Answers to Selected Exercises 281

Index 303