The following pages calculate r, r-squared, regression constants, Y residuals, and standard error of estimate for a set of N bivariate values of X and Y, and perform a t-test for the significance of the obtained value of...

This website, created by Richard Lowry of Vassar College, is an application of Bayes' Theorem that performs the same calculations for the situation where the several probabilities are constructed as indices of subjective...

This glossary, created by M. Tevfik Dorka of the University of Newcastle, gives definitions for numerous statistical terms, concepts, methods, and rules. The list is extremely comprehensive. The author does more than...

This site gives an explanation, a definition of, and an example using comparison of two means. Topics include confidence intervals and significance tests, z and t statistics, and pooled t procedures. Overall, this is a...

Given a sample of N values of X randomly drawn from a normally distributed population, this program will calculate the .95 and .99 confidence intervals (CI) for the estimated mean of the population. Data entry is simple,...