JAWABAN UAS STATISTIKA I 2018 KELAS
REGULER A
No.
|
X
|
Y
|
X²
|
Y²
|
XY
|
1
|
10.9
|
9100
|
118.81
|
82810000
|
99190
|
2
|
11.4
|
9500
|
129.96
|
90250000
|
108300
|
3
|
11.8
|
9800
|
139.24
|
96040000
|
115640
|
4
|
12.5
|
10000
|
156.25
|
100000000
|
125000
|
5
|
11.4
|
9500
|
129.96
|
90250000
|
108300
|
6
|
10.7
|
9000
|
114.49
|
81000000
|
96300
|
7
|
11
|
9300
|
121
|
86490000
|
102300
|
8
|
10.8
|
9200
|
116.64
|
84640000
|
99360
|
9
|
10.7
|
9000
|
114.49
|
81000000
|
96300
|
10
|
10.8
|
9200
|
116.64
|
84640000
|
99360
|
11
|
10.6
|
8950
|
112.36
|
80102500
|
94870
|
12
|
11
|
9300
|
121
|
86490000
|
102300
|
13
|
11
|
9300
|
121
|
86490000
|
102300
|
14
|
10.8
|
9200
|
116.64
|
84640000
|
99360
|
15
|
11
|
9300
|
121
|
86490000
|
102300
|
16
|
10.8
|
9200
|
116.64
|
84640000
|
99360
|
17
|
15.1
|
11400
|
228.01
|
129960000
|
172140
|
18
|
16
|
11800
|
256
|
139240000
|
188800
|
19
|
13
|
10200
|
169
|
104040000
|
132600
|
20
|
12
|
9900
|
144
|
98010000
|
118800
|
21
|
11.3
|
9400
|
127.69
|
88360000
|
106220
|
22
|
10.7
|
9000
|
114.49
|
81000000
|
96300
|
23
|
10.8
|
9200
|
116.64
|
84640000
|
99360
|
24
|
10.6
|
8950
|
112.36
|
80102500
|
94870
|
25
|
10.7
|
9000
|
114.49
|
81000000
|
96300
|
26
|
9.9
|
8700
|
98.01
|
75690000
|
86130
|
27
|
9.8
|
8600
|
96.04
|
73960000
|
84280
|
28
|
10.4
|
8800
|
108.16
|
77440000
|
91520
|
29
|
10.7
|
9000
|
114.49
|
81000000
|
96300
|
30
|
10.8
|
9200
|
116.64
|
84640000
|
99360
|
31
|
11.3
|
9400
|
127.69
|
88360000
|
106220
|
32
|
11.5
|
9600
|
132.25
|
92160000
|
110400
|
33
|
11.7
|
9700
|
136.89
|
94090000
|
113490
|
34
|
12
|
9700
|
144
|
94090000
|
116400
|
35
|
11.9
|
9900
|
141.61
|
98010000
|
117810
|
36
|
14.9
|
11500
|
222.01
|
132250000
|
171350
|
37
|
16
|
11900
|
256
|
141610000
|
190400
|
38
|
15.1
|
11400
|
228.01
|
129960000
|
172140
|
39
|
15
|
11600
|
225
|
134560000
|
174000
|
40
|
15.5
|
11700
|
240.25
|
136890000
|
181350
|
41
|
17
|
12400
|
289
|
153760000
|
210800
|
Σ
|
490.9
|
400800
|
6024.85
|
3960795000
|
4877880
|
·
PERSAMAAN REGRESI LINEAR SEDERHANA :
Y = A + BX
B = (n.ΣXY – ΣX.ΣY) / (n.ΣX² - (ΣX)² =
526,68
A = ΣY – B.ΣX / n = 3349,84
Jadi, persamaan regresi linear sederhana
adalah Y = 3349,84 + 526,68X
·
Korelasi Spearman antara tingkat inflasi
terhadap nilai kurs rupiah (IDR-USD) adalah :
r xy = n.(ΣXY) – (ΣX).(ΣY) / √[n.(ΣX2)-(ΣX)2][n.(ΣY2)-(ΣY)2]
r xy = 3.240.360 / 3.252.344,33
= 0,996315
Interpretasi dari korelasi tingkat inflasi di
Indonesia terhadap nilai kurs rupiah (IDR-USD) dari tahun 2005 – 2015 adalah
sangat kuat yaitu berada pada skala 0,88 sampai 1.
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