The reason that we pool variances is to
A) inflate our error term.
B) get a better estimate of error variance.
C) reduce the sample variance.
D) increase the size of t .

Question

Quizplus · Accepted Answer

Pooling variances allows for a more accurate estimate of the error variance because it combines information from both samples. This increases the precision and reduces the likelihood of Type I and Type II errors.

The Reason That We Pool Variances Is to