Which of the following conditions must be met to conduct a test for the difference in two sample means?
A)Data must be at least of interval scale
B)Populations must be normal
C)Variances in the two populations must be equal
D)A and B correct

Question

Quizplus · Accepted Answer

To conduct a test for the difference in two sample means, data must be at least of interval scale and populations must be normal. The assumption of equal variances can also be made, but there are methods to account for unequal variances. Therefore, A and B are correct.

Which of the Following Conditions Must Be Met to Conduct