An analysis of variance produces SS_between = 40 and MS_between = 20.In this analysis,how many treatment conditions are being compared? A)2 B)3 C)4 D)20

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The number of treatment conditions can be found by dividing the sum of squares between (SS_between) by the mean square between (MS_between). Given SS_between = 40 and MS_between = 20, dividing 40 by 20 gives 2, which indicates there are 2 degrees of freedom for the treatments. Since the degrees of freedom for treatments is one less than the number of treatment conditions, there must be 3 treatment conditions being compared.

An Analysis of Variance Produces SSbetween = 40 and MSbetween

An Analysis of Variance Produces SS_between = 40 and MS_between