Wolfram Demonstrations Project

The Visual ANOVA application lets you explore the effect on the

-ratio of changes in the group means and standard deviations in a one-way ANOVA with four groups and 10 subjects per group.

Use the controls to adjust the mean and standard deviation of each group. The

-ratio is calculated automatically. The

-ratio increases when one group mean is further apart from the other three. Increasing the standard deviations decreases the

-ratio.

This application was developed on the model of the "Understanding ANOVA Visually" website of the Psychology department of the University of Utah.

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Visual ANOVA