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) All the above are correct
E) None of these statements is correct

Question

Quizplus · Accepted Answer

All the conditions listed (A, B, and C) are typically required to conduct a test for the difference in two sample means, especially when using a t-test.

Which of the Following Conditions Must Be Met to Conduct