106
n
Statistik Ketepatan Peramalan Metode Regresi Linier
Perhitungan :
9
Nilai Tengah Galat Absolut (Mean Absolute Error)
MAE =
1
?
n
et
=
1
×
3963,68 = 110,1022
n
t ¹
=¹
36
9
Nilai Tengah Galat Kuadrat (Mean Squared Error)
MSE =
1
?
n
et
2
=
1
×
668229,82 = 18561,9394
n
t ¹
=¹
36
9
Deviasi Standar Galat (Standard Deviation of Error)
SDE
=
1
n
-
1
?
t
=¹
et
2
=
1
36 -
1
×
668229,82
=
138,1748
9
Nilai
Tengah
Galat
Persentase
Absolut
(Mean
Absolute
Percentage
Error)
MAPE =
1
?
n
PE =
1
×
281,99 = 7,8331
n
t
=¹
t
36
 |