In a t test for independent means, the weighted average of the estimates of the population variance from two samples is known as the:
A)estimate of sample standard deviation
B)primed estimate of population standard deviation
C)pooled estimate of population variance
D)pooled estimate of degrees of freedom

Question

Quizplus · Accepted Answer

The weighted average of the estimates of the population variance from two independent samples is known as the pooled estimate of the population variance. This estimate gives us a more accurate measure of the true population variance by taking into account the variation in both samples.

In a T Test for Independent Means, the Weighted Average