Question: Using the 4 weeks of data below, what is the forecast error for week 4 using a 3 week weighted moving average if the most

Using the 4 weeks of data below, what is the forecast error for week 4 using a 3 week weighted moving average if the most current weight is 0.7, then 0.2 and lastly 0.1.?

Week

Sales

1

20

2

40

3

15

4

38

Group of answer choices

0

-17.5

17.5

4.4

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