Soal
Seorang peneliti
melakukan penelitian tentang pengaruh jarak tanam terhadap produksi tanaman
cabe. Maka dilakukan penelitian dengan menggunakan lima macam jarak tanam : A =
15x15cm , B=15x20cm, C=15x25cm, D=20x20cm, diperoleh datanya dalam kwintal/ha
sebagai berikut :
Merge |
Ulangan |
||||
1 |
2 |
3 |
4 |
5 |
|
A |
5,2 |
6,2 |
5,9 |
5,7 |
6,5 |
B |
5,7 |
6,1 |
6,2 |
7,5 |
6,2 |
C |
6 |
7,3 |
6,5 |
7,1 |
7,5 |
D |
5,1 |
8,5 |
9,2 |
7,3 |
8,7 |
Dengan menggunakan taraf signifikansi 5%
Jawab
Descriptives |
|
|
||||||||
Produksi |
|
|
||||||||
|
N |
Mean |
Std.
Deviation |
Std.
Error |
95%
Confidence Interval for Mean |
|
|
|||
Lower
Bound |
Upper
Bound |
|
|
|||||||
A |
5 |
5,9000 |
,49497 |
,22136 |
5,2854 |
6,5146 |
|
|
||
B |
5 |
6,3400 |
,68044 |
,30430 |
5,4951 |
7,1849 |
|
|
||
C |
5 |
6,8800 |
,61806 |
,27641 |
6,1126 |
7,6474 |
|
|
||
D |
5 |
7,7600 |
1,64256 |
,73457 |
5,7205 |
9,7995 |
|
|
||
Total |
20 |
6,7200 |
1,14184 |
,25532 |
6,1856 |
7,2544 |
|
|
||
Descriptives |
|
|||||||||
Produksi |
|
|||||||||
|
Minimum |
Maximum |
||||||||
A |
5,20 |
6,50 |
|
|||||||
B |
5,70 |
7,50 |
|
|||||||
C |
6,00 |
7,50 |
|
|||||||
D |
5,10 |
9,20 |
|
|||||||
Total |
5,10 |
9,20 |
|
|||||||
|
Test
of Homogeneity of Variances |
|||
Produksi |
|||
Levene
Statistic |
df1 |
df2 |
Sig. |
3,036 |
3 |
16 |
,060 |
ANOVA |
|||||
Produksi |
|||||
|
Sum
of Squares |
df |
Mean
Square |
F |
Sig. |
Between Groups |
9,620 |
3 |
3,207 |
3,386 |
,044 |
Within Groups |
15,152 |
16 |
,947 |
|
|
Total |
24,772 |
19 |
|
|
|
Post
Hoc Tests
Multiple
Comparisons |
|||||
Dependent Variable:
Produksi |
|||||
LSD |
|||||
(I) Perlakuan |
(J) Perlakuan |
Mean
Difference (I-J) |
Std.
Error |
Sig. |
95%
Confidence Interval |
Lower
Bound |
|||||
A |
B |
-,44000 |
,61547 |
,485 |
-1,7447 |
C |
-,98000 |
,61547 |
,131 |
-2,2847 |
|
D |
-1,86000* |
,61547 |
,008 |
-3,1647 |
|
B |
A |
,44000 |
,61547 |
,485 |
-,8647 |
C |
-,54000 |
,61547 |
,393 |
-1,8447 |
|
D |
-1,42000* |
,61547 |
,035 |
-2,7247 |
|
C |
A |
,98000 |
,61547 |
,131 |
-,3247 |
B |
,54000 |
,61547 |
,393 |
-,7647 |
|
D |
-,88000 |
,61547 |
,172 |
-2,1847 |
|
D |
A |
1,86000* |
,61547 |
,008 |
,5553 |
B |
1,42000* |
,61547 |
,035 |
,1153 |
|
C |
,88000 |
,61547 |
,172 |
-,4247 |
Multiple
Comparisons |
||
Dependent Variable:
Produksi |
||
LSD |
||
(I) Perlakuan |
(J) Perlakuan |
95%
Confidence Interval |
Upper
Bound |
||
A |
B |
,8647 |
C |
,3247 |
|
D |
-,5553 |
|
B |
A |
1,7447 |
C |
,7647 |
|
D |
-,1153 |
|
C |
A |
2,2847 |
B |
1,8447 |
|
D |
,4247 |
|
D |
A |
3,1647 |
B |
2,7247 |
|
C |
2,1847 |
*. The mean
difference is significant at the 0.05 level. |
-
H0 = Tidak ada perbedaan jarak tanam
terhadap produksi tanaman cabe
-
H1 = Ada perbedaan jarak tanam terhadap
produksi tanaman cabe
-
α= 0,05
-
Pvalue =0,044
-
0,044 < 0,05 (Pvalue < α)
-
H0 ditolak
Kesimpulan
Ada perbedaan
pengaruh yang nyata (0,044<α) jarak tanam terhadap produksi tanaman cabe.
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