You can search this electronic textbook for statistics topics including ANOVA, linear regression models, the effects of outliers, confidence intervals, etc. Gives explanations and discusses the topics.
StatSoft
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This website explains the Analysis of Variance (ANOVA).
Are the means equal?
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A helpful scientific calculator that runs in your web browser window.
Holt Online Learning
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This website provides graphical displays, an index of online calculators and summaries of main topis in statistics.
Statistics to Use
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This site is designed to provide information, demonstrations, links and quizzes associated with the statistics and statistical methods for research design and analysis. It includes tuorials and applets
WebStat
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Online Textbook for a variety of statistical tests
Statistica Website
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An online statistics book with links to other statistics resources on the web.
HyperStat Online Statistics Textbook
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The T-test tutorial page provides a good background for understanding ANOVA ("Analysis of Variance"). Like the two-sample t-test, ANOVA lets us test hypotheses about the mean (average) of a dependent variable across different groups.
Statistically Significant Consulting, LLC
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Preliminaries, ANOVA with 1 between-subjects factor, Tests supplementing ANOVA, Formal model, Expected mean squares, Reporting results, Exercises
HyperStat Online
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