data science course singapore data science course singapore | Page 63

Last Sample: Number of customers requiring repair work
Customers Fitted value Residual
Y_t
e_t
58
54
58
-4
60
54
6
55
60
-5
62
55
7
62
62
0
65
62
3
63
65
-2
70
63
7
MAD
4.25
|e_t| e_t^2 e_t/Y_t |e_t/Y_t|
4
6
5
7
0
3
2
7
MSE
23.5 16
36
25
49
0
9
4
49
RMSE
4.85 -0.07407
0.1
-0.09091
0.112903
0
0.046154
-0.03175
0.1
MPE
0.0203 0.074074
0.1
0.090909
0.112903
0
0.046154
0.031746
0.1
MAPE
0.0695
Forecast method: Last sample
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