In order to determine whether or not the means of two populations are equal,
A)a t test must be performed
B)an analysis of variance must be performed
C)either a t test or an analysis of variance can be performed
D)a chi-square test must be performed

Question

Quizplus · Accepted Answer

Either a t-test or an analysis of variance can be performed to determine whether or not the means of two populations are equal. A t-test is used when the sample sizes are small (less than 30) and the populations are normally distributed. An analysis of variance is used when the sample sizes are large (greater than 30) or the populations are not normally distributed.

In Order to Determine Whether or Not the Means of Two