Question: 7. Mean Absolute Deviation (MAD) (Refer to Slides 52, 53, and 54 in Chapter 02 -or- Pages 54 and 55 in the textbook) Calculate the
7. Mean Absolute Deviation (MAD) (Refer to Slides 52, 53, and 54 in Chapter 02 -or- Pages 54 and 55 in the textbook) Calculate the Mean Absolute Deviation (MAD) using the following data. Month Actual Sales Forecast ABS Deviation
| Month | Actual Sales | Forecast |
| ABS Deviation |
| JAN | 1,345 | 1,375 |
|
|
| FEB | 1,445 | 1,330 |
|
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| MAR | 1,470 | 1,450 |
|
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| APR | 1,390 | 1,420 |
|
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| MAY | 1,340 | 1,350 |
|
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| JUN | 1,345 | 1,340 |
|
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| JUL | 1,300 | 1,305 |
|
|
| AUG | 1,375 | 1,355 |
|
|
| SEP | 2,152 | 2,200 |
|
|
| OCT | 2,312 | 2,135 |
|
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| NOV | 2,352 | 2,320 |
|
|
| DEC | 2,224 | 2,272 |
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|
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|
| TOTAL |
|
| ||
| AVERAGE |
|
| ||
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