An independent-groups t-test
A)compares sample means for two related groups.
B)compares sample means for two unrelated groups.
C)compares standard deviations for two unrelated group.
D)compares sample means for three or more unrelated groups.

Question

Quizplus · Accepted Answer

An independent-groups t-test compares the sample means of two unrelated groups, making option B the correct choice. Option A refers to a paired t-test and option C to testing differences in variance. Option D refers to ANOVA, which compares sample means of three or more unrelated groups.

An Independent-Groups T-Test