When independent samples are used to test for differences in the means,we pool the sample variances.

Name: When independent samples are used to test for differences in the means,we pool the sample variances.
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When independent samples are used to test for differences in the means, we assume that the population variances are equal. Therefore, we pool the sample variances to estimate a common variance and use that in our calculations for the test statistic.

When Independent Samples Are Used to Test for Differences in the Means,we