(Choose 1 answer)
(See picture)
Α. 60.828
Β. 14.696
C. 22.991
D. 65.027
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
1
2
3
4
5
6
7
8
Before Course (1) After Course (2)
530
690
910
700
450
820
820
630
670
770
1,000
710
550
870
770
610
The value of the standard error of the difference scores is
FUO
2: 7
