What pieces of information from two samples does the "pooled estimate" combine?
A) Z (obtained) scores for each sample
B) means of both sampling distributions
C) the difference in means between the two samples
D) sample standard deviations, divided by the size of each sample (n)

Question

Quizplus · Accepted Answer

The "pooled estimate" combines the sample standard deviations, divided by the size of each sample (n), to estimate a common standard deviation when assuming equal variances in two samples.

What Pieces of Information from Two Samples Does the "Pooled