Erna Rutiah Novarina : Sistem Perawatan Berbasis Pencegahan Menurut Rancangan Modularity Task Dalam Upaya Penurunan Biaya Perawatan Pada PT. Cakra Compact Alumunium Industries, 2010.
b. Distribusi Lognormal
N ti
FTi Ti =LN ti
Yi Ti²
Yi ²
Ti.Yi
1 1623
0,0455 7,3920
-1,6906 54,6421
2,8582 -12,4971
2 1668
0,1104 7,4194
-1,2245 55,0472
1,4993 -9,0847
3 1713
0,1753 7,4460
-0,9333 55,4429
0,8711 -6,9496
4 1821
0,2403 7,5071
-0,7055 56,3572
0,4977 -5,2960
5 2046
0,3052 7,6236
-0,5095 58,1199
0,2596 -3,8844
6 2146
0,3701 7,6714
-0,3315 58,8498
0,1099 -2,5431
7 2356
0,4351 7,7647
-0,1635 60,2909
0,0267 -1,2695
8 2393
0,5000 7,7803
0,0000 60,5331
0,0000 0,0000
9 2490
0,5649 7,8200
0,1635 61,1530
0,0267 1,2785
10 2499
0,6299 7,8236
0,3315 61,2094
0,1099 2,5936
11 2537
0,6948 7,8387
0,5095 61,4458
0,2596 3,9940
12 2540
0,7597 7,8399
0,7055 61,4643
0,4977 5,5308
13 2571
0,8247 7,8521
0,9333 61,6547
0,8711 7,3286
14 2613
0,8896 7,8683
1,2245 61,9094
1,4993 9,6344
15 2645
0,9545 7,8804
1,6906 62,1011
2,8582 13,3228
TOTAL 115,5277
0,0000 890,2209
12,2451 2,1582
Index Of Fit a.
Sxy =
−
∑ ∑
∑
= =
= N
i N
i N
i
Yi Ti
TiYi N
1 1
1
. = 15.2,1582 – 890,2209.0
= 32,3727 b.
Sxx =
2 1
1 2
−
∑ ∑
= =
N i
N i
Ti Ti
N
= 15 890,2209 – 115,5277
2
= 6,6757 c.
Syy =
2 1
1 2
−
∑ ∑
= =
N i
N i
Yi Yi
N
= 15 12,2451 – 0
2
= 183,6758 d.
Sehingga Index Of Fit r = Syy
Sxx Sxy
. =
6758 ,
183 .
6757 ,
6 3727
, 32
= 0,9245
Erna Rutiah Novarina : Sistem Perawatan Berbasis Pencegahan Menurut Rancangan Modularity Task Dalam Upaya Penurunan Biaya Perawatan Pada PT. Cakra Compact Alumunium Industries, 2010.
c. Distribusi Eksponensial
N Ti
FTi Yi = LN[1-FTi]
Ti² Yi²
Ti.Yi
1 1623
0,0455 -0,0465
2634129 0,0022
-75,5020 2
1668 0,1104
-0,1170 2782224
0,0137 -195,1088
3 1713
0,1753 -0,1928
2934369 0,0372
-330,2073 4
1821 0,2403
-0,2748 3316041
0,0755 -500,3720
5 2046
0,3052 -0,3641
4186116 0,1326
-744,9972 6
2146 0,3701
-0,4622 4605316
0,2137 -991,9705
7 2356
0,4351 -0,5710
5550736 0,3261
-1345,3808 8
2393 0,5000
-0,6931 5726449
0,4805 -1658,7012
9 2490
0,5649 -0,8323
6200100 0,6927
-2072,3274 10
2499 0,6299
-0,9939 6245001
0,9878 -2483,7594
11 2537
0,6948 -1,1868
6436369 1,4085
-3010,9243 12
2540 0,7597
-1,4260 6451600
2,0336 -3622,1281
13 2571
0,8247 -1,7411
6610041 3,0315
-4476,4086 14
2613 0,8896
-2,2037 6827769
4,8565 -5758,3707
15 2645
0,9545 -3,0910
6996025 9,5545
-8175,8073 TOTAL
33661 -14,1965
77502285 23,8464
-35441,9655
Index Of Fit 1.
Sxy =
−
∑ ∑
∑
= =
= N
i N
i N
i
Yi Ti
TiYi N
1 1
1
. = 15.-35441,9655 – 33661.-14,1965
= 53761,386 2.
Sxx =
2 1
1 2
−
∑ ∑
= =
N i
N i
Ti Ti
N
= 15 77502285 – 33661
2
= 29471354 3.
Syy =
2 1
1 2
−
∑ ∑
= =
N i
N i
Yi Yi
N
= 15 23,8464 – -14,1965
2
= 156,15531 4.
Sehingga Index Of Fit r = Syy
Sxx Sxy
. =
15531 ,
156 .
29471354 386
, 53761
= 0,7925
Erna Rutiah Novarina : Sistem Perawatan Berbasis Pencegahan Menurut Rancangan Modularity Task Dalam Upaya Penurunan Biaya Perawatan Pada PT. Cakra Compact Alumunium Industries, 2010.
d. Distribusi Weibull
