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__Statistics Online Compute Resourses (SOCR)__

The SOCR 1-Way ANOVA Applet is available here and 2-Way ANOVA is available here (both require Java-enabled browser). fter clinking this link, if you do not see it in the next 5 seconds it pronbably means your browser is **NOT** Java-enabled!
Analysis of variance (ANOVA) performs comparisons like the t-Test,
but for an arbitrary number of factors. Each factor can have an
arbitrary number of levels. Furthermore each factor combination can
have any number of replicates. ANOVA works on a single dependent
variable. The factors must be discrete. The ANOVA can be thought of in
a practical sense as an extension of the t-Test to an arbitrary number
of factors and levels. It can also be thought of as a linear regression
model whose independent variables are restricted to a discrete set.

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Ivo D. Dinov,
Ph.D., Departments of Statistics and Neurology, UCLA School of Medicine