One sample goodness of fit k = 5 categories

One sample goodness of fit k = 4 categories

Two sample goodness of fit k = 5 categories x 2 samples

3 x 3 Contingency Table

Fisher's Exact Test

2 x 2 Chi-square test avec Phi Coefficient

Relative risk with 95% confidence interval estimates

Odds ratio with 95% confidence interval estimates

Attributable risk with 95% confidence interval estimates

McNemar Chi-square

Concepts of Variance

Computing the 95% Confidence Intervals for a sample mean

Student's t Test

Pairwise t Test

t for 2 ind sample means and pooled variance

Notes on Sampling

Sampling for a Population Proportion

Sampling for a Comparison to Expected Population

Sampling for a Case Control Studies

Sampling for a Cohort Study

Generated Ordinal Scaled Numbers from 1 to 4

Using the Lotto to evaluate random events

Generate Values for Pre Post Comparisons

Generate Random Heart Rates

Dice Roller

Prelude to the Pearson Correlations

Sample Size Module 1: Estimating the sample size to represent a population proportion

Generate Random Numbers for the Sign test

Generate 2 x 2 cell frequencies

The webulators were designed by William Montelpare for applications in research and the presentation of courses in Epidemiology and the Introduction to Biostatistics. The webulators were written using client-side javascript, perl and php, and can function from several different browsers.

Professor William J. Montelpare, Ph.D.,
Margaret and Wallace McCain Chair in Human Development and Health,
Department of Applied Human Sciences, Faculty of Science,
Health Sciences Building, University of Prince Edward Island,
550 Charlottetown, PE, Canada, C1A 4P3
(o) 902 620 5186
e-mail wmontelpare@upei.ca
Copyright © 2002--ongoing [University of Prince Edward Island]. All rights reserved.