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20 December, 15:14

Suppose that the last four months of sales were 8, 10, 15, and 9 units, respectively. Suppose further that the last four forecasts were 5, 6, 11, and 12 units, respectively. What is the Mean Absolute Deviation (MAD) of this forecasting period?

A. 2

B. - 10

C. 5.5

D. 9

E. 10.5

+1
Answers (1)
  1. 20 December, 18:27
    0
    -25.5

    Explanation:

    First, we find the Mean

    = 5+6+11+12=34

    Absolute mean value = (5-34) + (6-34) + (11-34) + (12-34) = - 102/4=-25.5
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Home » Business » Suppose that the last four months of sales were 8, 10, 15, and 9 units, respectively. Suppose further that the last four forecasts were 5, 6, 11, and 12 units, respectively. What is the Mean Absolute Deviation (MAD) of this forecasting period? A.
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