Weeks | DJIA | S&P | Forecast | Error | |Error| | APE |
1 | 27260 | 2967 | 27092.5 | 167.5 | 167.51 | 0.61% |
2 | 27133 | 2956 | 27049.8 | 83.2 | 83.18 | 0.31% |
3 | 26990 | 2989 | 27177.8 | -187.8 | 187.83 | 0.70% |
4 | 26998 | 2995 | 27201.1 | -203.1 | 203.11 | 0.75% |
5 | 27101 | 3002 | 27228.3 | -127.3 | 127.26 | 0.47% |
6 | 27234 | 3010 | 27259.3 | -25.3 | 25.30 | 0.09% |
7 | 27344 | 3011 | 27263.2 | 80.8 | 80.82 | 0.30% |
8 | 27400 | 3020 | 27298.1 | 101.9 | 101.91 | 0.37% |
9 | 27405 | 3033 | 27348.5 | 56.5 | 56.48 | 0.21% |
10 | 27406 | 3034 | 27352.4 | 53.6 | 53.60 | 0.20% |
Avg --> | 108.70 | 0.4001% | ||||
Model: | MAD | MAPE | ||||
DJIA | 15582.82 | + | 3.88 | *S&P | ||
Given S&P | 2975 | 3050 | ||||
Forecast for DJIA | 27123.5 | 27414.5 |
Calculations:
Answers:
a) 27123.5 (your alternative may be rounded off to 27124)
b) 27414.5 (your alternative may be rounded off to 27415)
c) MAD = 108.70
d) MAPE = 0.4001% or, 0.004 (depends on which format is used in the alternative)
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