√∑ d.
Analyzing the Standard Deviation Score of Variable Y with formula : √∑
e. Analyzing the Standard Error Mean of Variable X with formula :
SEMx =
√
f. Analyzing the Standard Error Mean of Variable Y with formula :
SEMy =
√
g. Analyzing the Standard Error of different Mean of Variable X and Mean of
Variable Y with formula :
SEMx – SEMy = √
h. Analyzing t
with formula :
t =
i. Analyzing the degree of freedom df with formula :
df = n
1
+ n
2
– 2
G. Hypothesis Statistics
The limitation of this studyhypothesis determine as follow: H
: Collocation instruction is not effective towards students’ writing skill of
procedure text for grade VII at SMP Islamiyah Ciputat. H
1
: Collocation instruction is effective towards studen ts’ writing skill of
procedure text for grade VII at SMP Islamiyah Ciputat. The following is the formulation of the statistics hypothesis:
H
o
: µ
1
= µ
2
H
1
: µ
1
≠ µ
2
For the next step, the writer used the following criteria: 1. If t-test tt t-table to in significant rank of 0,05, Ho null hypothesis is
rejected. It means there is significant difference between students’
achievement in writing procedure text for grade VII at SMP Islamiyah Ciputat in experimental group.
2. If t-test tt t-table to in significant rank of 0,05, Ho the null hypothesis is accepted. It means there is no significant difference between
students’ achievement in writing procedure text for grade VII at SMP Islamiyah Ciputat in experimental group.
CHAPTER IV RESEARCH FINDING AND DISCUSSION
This chapter consists of some information about data description, data analyzing, test hypothesis and finding interpretation.
A. Data Description
1. The Pre-Test Score
In this study, the writer collected pre-test score both in experimental class and controlled class before giving treatment to the students in the classroom. The
following is the description of the pre-test score: Table 4.1
The Pre-Test Score of Experimental Class and Controlled Class Experimental Class
Controlled Class No
Code Score
No Code
Score 1.
E-1 80
1. C-1
76 2.
E-2 65
2. C-2
60 3.
E-3 67
3. C-3
76 4.
E-4 75
4. C-4
80 5.
E-5 77
5. C-5
74 6.
E-6 53
6. C-6
68 7.
E-7 77
7. C-7
80 8.
E-8 80
8. C-8
57 9.
E-9 70
9. C-9
76 10.
E-10 65
10. C-10
74 11.
E-11 53
11. C-11
74 12.
E-12 60
12. C-12
70 13.
E-13 53
13. C-13
76
14. E-14
53 14.
C-14 80
15. E-15
60 15.
C-15 60
16. E-16
75 16.
C-16 74
17. E-17
65 17.
C-17 63
18. E-18
70 18.
C-18 74
19. E-19
60 19.
C-19 63
20. E-20
70 20.
C-20 60
21. E-21
75 21.
C-21 57
22. E-22
80 22.
C-22 74
23. E-23
70 23.
C-23 68
24. E-24
65 24.
C-24 70
25. E-25
75 25.
C-25 60
26. E-26
67 26.
C-26 68
27. E-27
67 27.
C-27 68
28. E-28
60 28.
C-28 57
29. E-29
75 29.
C-29 70
30. E-30
53 30.
C-30 68
N = 30 ∑ X = 2015
N = 30 ∑ Y = 2075
Mean X 67.16
Mean Y 69.16
Based on table 4.1, it can be seen that 53 was the lowest students’ pre-test
score in experimental class and 80 was the highest students’ pre-test score in
experimental class while 57 the lowest students’ post-test score in control class was
53 and 80 was the highest students’ pre-test score in controlled class. Moreover, the
total students’ score of pre-test in experimental class was 2015 and the total students’ score of pre-test in controlled class was 2075. The experimental class has the average
score 67.16 and the controlled class has the average score 69.16
.
