TABLE 10-5 To Test the Effectiveness of a Business School Preparation Course

Multiple Choice

TABLE 10-5
To test the effectiveness of a business school preparation course, 8 students took a general business test before and after the course. The results are given below.
Exam Score Exam Score
Student Before Course (1) After Course (2)
1 530 670
2 690 770
3 910 1,000
4 700 710
5 450 550
6 820 870
7 820 770
8 630 610
-Referring to Table 10-5, at the 0.05 level of significance, the conclusion for this hypothesis test is that there is sufficient evidence that

A) the business school preparation course does improve exam score.
B) the business school preparation course does not improve exam score.
C) the business school preparation course has no impact on exam score.
D) No conclusion can be drawn from the information given.