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This page gives a short background on Student's ttest and provides three ttest calculators. Two perform ttests for independent groups and one performs ttests for matched pairs. Users type in individual data points...
This tutorial, created by Dale Berger of Claremont Graduate University, demonstrates the properties of sampling distributions using a Java applet. The tutorial has an accompanying handouts, reviews and even follow up...
Gives textbooklike explanation with some reallife data to compute a ttest and determine if two population means are equal. Also has some links for case studies and a webbased program called Dataplot. There is a...
This chapter of the HyperStat Online Textbook presents six sections on probability including conditional probability, unions, intersections, and the Binomial distribution. A link to exercises for the chapter is...
This website, created by David W. Stockburger, provides a basic explanation with diagrams of the one and twotailed ttests. The page does more than simply provide explanations of the test, but it actually compares the...

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