Sales of tablet computers at Ted Glickman’s electronics store in Washington,D,C., over the past 10 weeeks are shown in the table below:

Sales of tablet computers at Ted Glickman’s electronics store in Washington,D,C., over the past 10 weeeks are shown in the table below:

Week Damand

1 20

2 21

3 28

4 37

5 25

6 29

7 36

8 22

9 25

10 28

a)Forecast demand for each week, including week 10, using exponential smoothing with a=0.5 (initial forecast=20)

b)Compute the MAD

c)Compute the tracking signal

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