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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