Parametric statistical test assumes that there is homogeneity of variance in both groups.

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Parametric statistical tests, such as t-tests and ANOVA, assume that there is homogeneity of variance in both groups being compared. This assumption is necessary to ensure that the results of the test are accurate and reliable. If the assumption of homogeneity of variance is violated, alternative non-parametric tests may need to be used instead.

Parametric Statistical Test Assumes That There Is Homogeneity of Variance