This article, created by Thomas E. Bradstreet and Deborah L. Panebianco of Merck Research Laboratories, describes data from a drug interaction study of a new drug and a standard oral contraceptive therapy. Both normal...

These pages will perform an analysis of covariance for k independent samples, where the individual samples, A, B, etc., represent k quantitative or categorical levels of the independent variable; DV = the dependent...

Using cooperative learning methods, this lesson introduces distributions for univariate data, emphasizing how distributions help us visualize central tendencies and variability. Students collect real data on head...

These applets, created by Virginia Tech's Department of Statistics, allow you to see how the common Xbar control chart is constructed with known variance. The Xbar chart is constructed by collecting a sample of size n at...

Created by Gavin Gibson of Heriot Watt University, this file applies the Cramer-Rao inequality to a binomial random variable to prove that the usual estimator of p is a minimum variance unbiased estimator. This is a...