Compute MAD and MSE for each forecast. The forecasts and actual sales are as fol
ID: 464610 • Letter: C
Question
Compute MAD and MSE for each forecast.
The forecasts and actual sales are as follows:
Month
SALES (ACTUAL)
FORECAST I
FORECAST II
1
780
770
778
2
789
785
788
3
794
790
792
4
780
784
798
5
778
770
774
6
772
768
770
7
765
761
759
8
775
771
775
9
786
784
788
10
790
788
788
11 795 800 795
Month
SALES (ACTUAL)
FORECAST I
FORECAST II
1
780
770
778
2
789
785
788
3
794
790
792
4
780
784
798
5
778
770
774
6
772
768
770
7
765
761
759
8
775
771
775
9
786
784
788
10
790
788
788
Explanation / Answer
MAD for Forecast I is : 12.6
Month SALES (ACTUAL) FORECAST I 3MA Error |Error| Error Sqaue FORECAST II 3MA Error |Error| Error Sqaue 1 780 770 778 2 789 785 788 3 794 790 792 4 780 784 781.666667 2 2 4 798 786 12 12 144 5 778 770 786.333333 -16 16 256 774 792.6667 -19 19 361 6 772 768 781.333333 -13 13 169 770 788 -18 18 324 7 765 761 774 -13 13 169 759 780.6667 -22 22 484 8 775 771 766.333333 5 5 25 775 767.6667 7 7 49 9 786 784 766.666667 17 17 289 788 768 20 20 400 10 790 788 772 16 16 256 788 774 14 14 196 11 795 800 781 19 19 361 795 783.6667 11 11 121 12 790.666667 101 1529 790.3333 123 2079 12.6 191.1 15.4 259.9 MAD MSE MAD MSERelated Questions
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