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Biostatistics Made Easy:
A Guide for U.S. Air Force Public Health Professionals


 1.     Data display and summary  

 2.     Mean and standard deviation 

 3.     Populations and samples 

 4.     Statements of probability and confidence intervals 

 5.     Differences between means: type I and type II errors and power  

 6.     Differences between percentages and paired alternatives  

 7.     The t-tests  

 8.     The chi-squared tests

 9.     Exact probability test  

 10.   Rank score tests  

 11.   Correlation and regression

 12.   Survival analysis 

 13.   Study design and choosing a statistical test  

Appendix A - Probabilities related to multiples of standard deviations for a Normal distribution

Appendix B - Distribution of t (two tailed)

Appendix C - Distribution of  

Appendix D - Wilcoxon test on paired samples: 1% levels of P

Appendix E - Mann-Whitney test on unpaired samples: 5% and 1% levels of P  

Appendix F - Random Numbers

Glossary of Statistical Terms 

Download Area

Download  Chapter 1 Download Chapter 2 Download Chapter 3
Download Chapter 4 Download Chapter 5 Download Chapter 6
Download Chapter 7 Download Chapter 8 Download Chapter 9
Download Chapter 10 Download Chapter 11 Download Chapter 12
Download Chapter 13 Download Appendix A Download Appendix B
Download Appendix C Download Appendix D Download Appendix E
Download Appendix F Download the Glossary Download Entire Document
Adapted and Modified from:
T.D.V. Swinscow, Statistics at Square One, 9th Edition, Revised by M.J. Campbell, University of Southampton, UK