Question: Mean Absolute Deviation (MAD) Calculate the Mean Absolute Deviation (MAD) using the following data. (Refer to Slides 52, 53, and 54 in Chapter 02 -or-
Mean Absolute Deviation (MAD)
Calculate the Mean Absolute Deviation (MAD) using the following data.
(Refer to Slides 52, 53, and 54 in Chapter 02 -or- Pages 54 and 55 in the textbook)
| Month | Actual Sales | Forecast |
| JAN | 1,345 | 1,340 |
| FEB | 1,445 | 1,435 |
| MAR | 1,470 | 1,460 |
| APR | 1,390 | 1,490 |
| MAY | 1,340 | 1,370 |
| JUN | 1,345 | 1,350 |
| JUL | 1,300 | 1,295 |
| AUG | 1,375 | 1,375 |
| SEP | 2,152 | 2,144 |
| OCT | 2,312 | 2,296 |
| NOV | 2,352 | 2,336 |
| DEC | 2,224 | 2,379 |
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