Slide 1 Slide 2 The t-distribution William Gosset lived from 1876 to 1937 Gosset invented the t -test to handle small samples for quality control in brewing. He wrote under…

Slide 11 Introduction to Biostatistics (BIO/EPI 540) Contingency Tables Acknowledgement: Thanks to Professor Pagano (Harvard School of Public Health) for lecture material…

Slide 1 Slide 2 Student’s t test This test was invented by a statistician working for the brewer Guinness. He was called WS Gosset (1867-1937), but preferred to keep anonymous…

Slide 1 7.11 Using Statistics To Make Inferences 7 Summary Single sample test of variance. Comparison of two variances. Monday, 22 June 20159:52 PM Slide 2 7.22 Goals To…

Slide 1 Lecture 5 12.2 Inference for a population mean when the stdev is unknown; one more example 12.3 Testing a population variance 12.4 Testing a population proportion…