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malfutka [58]
3 years ago
6

Suppose that the last four months of sales were 8, 10, 15, and 9 units, respectively. Suppose further that the last four forecas

t were 9, 11, 8 and 12 units, respectively. What is the mean absolute deviation (MAD) value of these forecast?
Business
1 answer:
Wewaii [24]3 years ago
4 0

Answer:

3

Explanation:

Data provided in the question:

Sales for the last four months :

8, 10, 15, and 9 units

Last four forecast of sales:

9, 11, 8 and 12 units

Now,

The mean absolute deviation (MAD) value of these forecast will be calculated as:

MAD = [ ∑|Sales - Forecast sales| ] ÷ [ Total number of forecast ]

or

MAD =  [ |8 - 9| + |10 - 11| + |15 - 8| + |9 - 12| ] ÷ 4

or

MAD = [ 1 + 1 + 7 + 3 ] ÷ 4

or

MAD = 12 ÷ 4

or

MAD = 3

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