Author Question: We would NOT pool the variances if a. we had too few subjects. b. we had too many subjects. c. ... (Read 46 times)

fasfsadfdsfa · **on:** Jun 20, 2018

We would NOT pool the variances if

a. we had too few subjects.
b. we had too many subjects.
c. The means were clearly different.
d. we had very unequal sample variances.

Question 2

When we speak about pooling variances we are referring to

a. averaging the two groups' variances.
b. using the variance of the larger group.
c. adding up the variances in each of two groups and dividing by 2.
d. taking the variance of both sets of data combined.