The denominator of the t-test is also known as the sample variance.

Name: The denominator of the t-test is also known as the sample variance.
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The denominator of the t-test is known as the standard error of the mean, not the sample variance. The standard error of the mean is derived from the sample variance but represents the variability of the sample mean estimates from the population mean.

The Denominator of the T-Test Is Also Known as the Sample