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- 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.
|
Student
|
Exam score
Before Course (1)
|
Exam Score
After course (2)
|
|
1
|
530
|
670
|
|
2
|
690
|
770
|
|
3
|
910
|
1000
|
|
4
|
700
|
710
|
|
5
|
450
|
550
|
|
6
|
820
|
870
|
|
7
|
820
|
770
|
|
8
|
630
|
610
|
Referring to Table 10-5, what is the critical value for testing at the 5% level
of significance whether the business school preparation course is effective in improving
exam scores?
|
|
|
2.365
|
|
|
|
2.145
|
|
|
|
1.761
|
|
|
1.895 |
