To test the effectiveness of a business school preparation course, 8 students took a general business test before and after the course. Suppose the before and after exam scores are both
Normally distributed. Which of the following tests will be the most appropriate?
A) Pooled-variance t test.
B) Paired t test.
C) Wilcoxon rank sum test.
D) Kruskal-Wallis rank Test.

Question

Quizplus · Accepted Answer

The paired t-test is the most appropriate test because it is used to compare the means of two related samples, which is the case here. The before and after exam scores are from the same students, so they are related.

To Test the Effectiveness of a Business School Preparation Course