Sales of tablet computers at the Ted Glickman's electronics store in Washington, D.C., over the past ten weeks are shown in the table below:
WEEK DEMAND WEEK DEMAND
1 20 6 29
2 21 7 36
3 28 8 22
4 37 9 25
5 25 10 28
a) Forecast demand for each and every week, including week 10, using exponential smoothing with the 5 .5 (initial forecast 5 20).
b) Calculate the MAD.
c) Calculate the tracking signal.