Bancroft's introduction to biostatistics

This text deals mainly with statistical methods appropriate for large samples. Frequency distributions, tabulation, graphing, use of centering constants and measures of variation, and other descriptive methods are treated in the introductory chapters. Further topics include the binomial and the use of normal distribution in large sample approximate tests of significance for differences in sample means and proportions. Additional chapters deal with the t tests and vital statistics (including the use of the modified life table techniques in follow-up studies), and the final chapter presents a brief discussion of quantal bioassay and the Reed-Muench method. The book was written with medical students and practicing physicians in mind.