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Components of Variance (ANOVA)

If this option “Display Components of Variance and Expected Mean Squares” was selected from the output options, the program adds additional information to the ANOVA worksheet for the components of variance and the expected mean squares as well as a chart sheet that contains the components of variance graph.

The table below is from the example data for the ANOVA.

There are 5 columns:

In addition to this table, a plot of the % of the Total against the source of variation is placed on a new chart sheet.  The chart for this example is shown below.  This allows you to easily see which components have the most variation.  This is most useful for random factors.

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