Sales of tablet computers at Ted Glickmans electronic store

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

Week

1

2

3

4

5

6

7

8

9

10

Demand

19

21

29

36

26

29

36

24

24

30

The forecast for weeks 2 through 10 using exponential smoothing with =0.55 and week 1 initial forecast of 21.0 are (round your responses to two decimal places).

Week

1

2

3

4

5

6

7

8

9

10

Demand

19

21

29

36

26

29

36

24

24

30

Forecast      91.0              ____          ____            _____       ______        ______    ____    ____   ____     _____

For the forecast developed using exponential smoothing (=0.55 and initial forecast 21.0), the MAD=_______sales (round your responses to two decimal places.)

For the forecast developed using exponential smoothing (=0.55 and initial forecast 21.0), the tracking signal =_____ (round your response to two decimal places.)

Week	1	2	3	4	5	6	7	8	9	10
Demand	19	21	29	36	26	29	36	24	24	30

Solution