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# Java Applet

• ### Primer on Type I and Type II Errors

This lecture example discusses type I and type II errors as they apply in a clinical setting.
• ### Primer on 95% Confidence Intervals

This lecture example reviews the concept of CIs and their relationship to P values. Tables are provided in pdf format.
• ### Primer on Correlation Coefficients

This lecture example discusses how two continuous variables relate to one another with a clinical example of the relationship between body mass and fasting blood sugar. It offers three questions to help readers visualize and interpret correlation coefficients.
• ### Primer on Interpreting Surveys

Because surveys are increasingly common in the medical literature, readers need to be able to critically evaluate the survey method. Two questions are fundamental: 1) Who do the respondents represent? 2) What do their answers mean? This lecture example discusses survey sampling terms and aspects of interpreting survey results.
• ### Song: Learn to use Chance

Song calls for the importance of chance, juxtaposed a variety of statistical terms. May be sung to the tune of "Give Peace a Chance" (John Lennon). Musical accompaniment realization and vocals are by Joshua Lintz from University of Texas at El Paso.
• ### Cartoon: Raking the Lawn

A cartoon that can be used in teaching about the efficiency of using simulation in statistics. Cartoon by John Landers (www.landers.co.uk) based on an idea from Dennis Pearl (The Ohio State University). Free to use in the classroom and on course web sites.
• ### Quote: Lang on misuse of statistics

He uses statistics as a drunken man uses lamp-posts ... for support rather than illumination. A quote attributed to scottish writer Andrew Lang (1844-1912) in Evan Esar's "The Dictionary of Humerous Quotations". Dell Publishing, 1943. The quote also appears in "Statistically Speaking: A dictionary of quotations" compiled by Carl Gaither and Alma Cavazos-Gaither.
• ### Friedman's Test

This tutorial on Friedman's Test includes its definition, assumptions, characteristics, and hypotheses. An example using output from the WINKS software is given, but those without the software can still use the tutorial. An exercise is given at the end that can be done with any statistical software package.
• ### Parametric and Nonparametric Statistics

This page discusses the differences in parametric and nonparametric tests and when to use then.
• ### **National Library of Virtual Manipulatives: Box Plot

An interactive box plot applet that allows users to put in their own data that is part of a large collection of platform independent, interactive, java applets and activities for K-12 mathematics and teacher education.