The Statistical Hypothesis RESEARCH METHODOLOGY
Based on the Table of experimental class above, the highest score of pre-test was 70 and the lowest was 45. The highest score of post-test was 90 and the
lowest score was 65. In conclusion, the average of pre-test was 59.5 and post-test was 77.The total gained score in this class was 355. It can be known that there
was significant difference the pre test and post test.
Table 4.2 Students’ Score of Controlled Class Y
Students Pre-test Score
Post-test Score Gained Score
X
13 55
70 15
14 60
80 20
15 65
75 10
16 50
65 15
17 45
65 20
18 65
75 10
19 65
75 10
20 60
85 25
N= 20 1190
1540 355
M= 59.5 M= 77
17.75
Students Pre-test Score
Post-test Score Gained Score
Y
1. 55
60 5
2. 60
65 5
3. 50
60 10
4. 55
60 5
5. 50
60 10
Based on the Table of controlled class above, the highest score of pre-test was 70 and the lowest was 40. The highest score of post-test was 90 and the lowest
was 55. In conclusion, the average of pre-test 56.75 and post-test was 66. The total gained score was 185
Based on the data presented in the Table 4.2 above, it showed that the lowest gained score was 185 and the highest was 355. Furthermore, after decided the
calculation of the test both pre- test and post- test, the writer calculated them based on the step of the t- test.
Students Pre-test Score
Post-test Score Gained Score
Y
6. 65
75 10
7. 65
75 10
8. 50
60 10
9. 65
70 5
10. 70
80 10
11. 45
55 10
12. 65
70 5
13. 65
75 10
14. 45
60 15
15. 55
60 5
16. 40
60 20
17. 45
55 10
18. 65
85 20
19. 65
70 5
20. 60
65 5
N = 20 1135
1320 185
M= 56.75 M= 66
9.25