To employ ANOVA,the populations should have approximately equal standard deviations.

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It is a requirement of ANOVA that the populations being compared have approximately equal standard deviations. This is necessary in order for the test to be valid and accurate. If the standard deviations are drastically different, it can lead to biased results and make it difficult to interpret the differences between the groups being compared.

To Employ ANOVA,the Populations Should Have Approximately Equal Standard Deviations