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This slide show presentation, created by William Richards of The Vancouver Network Analysis Team, provides two good examples on using the Ztest for the difference between two means. Gives some good "plain language"...
This applet, created by David M. Lane of Rice's Virtual Lab in Statistics, illustrates many features of a twofactor analysis of variance. Allows the user to adjust the group size and group means. Gives output of ANOVA...
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...
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 particular textbook lesson, presented by Cornell University's Research Methods Knowledge Base, addresses the independent ttest. It presents to the user how to compute the t statistic and then how to interpret the...

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