Sales of tablet computers at Ted​ Glickman's electronics store in​ Washington, D.C., over the past 10 weeks are shown in the table​ below:                                                                                                                       Week 1 2 3 4 5 6 7 8 9 10 Demand 20 23 29 38 25 29 36 24 26 29 ​a) The forecast for weeks 2 through 10 using exponential smoothing with α ​= 0.50 and a week 1 initial forecast of 20.0 are ​   (round your responses to two decimal​ places):   Week 1 2 3 4 5 6 7 8 9 10 Demand 20 23 29 38 25 29 36 24 26 29 Forecast 20.0                   ​ b) For the forecast developed using exponential smoothing ​(α ​= 0.50 and initial forecast 20.0​), the MAD​ =            sales ​(round your response to two decimal​ places).   ​c) For the forecast developed using exponential smoothing ​(α ​= 0.50 and initial forecast 20.0​), the tracking signal​ =   ​(round your response to two decimal​ places).

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Sales of tablet computers at Ted​ Glickman's electronics store in​ Washington, D.C., over the past 10 weeks are shown in the table​ below:
                                                                                                                     
Week
1
2
3
4
5
6
7
8
9
10
Demand
20
23
29
38
25
29
36
24
26
29
​a) The forecast for weeks 2 through 10 using exponential smoothing with
α ​= 0.50 and a week 1 initial forecast of 20.0
are ​
 
(round your responses to two decimal​ places):
 
Week
1
2
3
4
5
6
7
8
9
10
Demand
20
23
29
38
25
29
36
24
26
29
Forecast
20.0
                 
b) For the forecast developed using exponential smoothing
​(α ​= 0.50 and initial forecast 20.0​), the MAD​ =            sales ​(round your response to two decimal​ places).
 
​c) For the forecast developed using exponential smoothing
​(α ​= 0.50 and initial forecast 20.0​), the tracking signal​ =
 
​(round your response to two decimal​ places).
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