please answer in excel Jean’s Copiers sells and repairs photocopy machines. The manager needs weekly forecasts of service calls so that she can schedule the personnel. The manager uses α = 0.3 for exponential smoothing, and the forecast for the first week was 24 calls. The manager also uses 3 weekly moving averages technique.a) Using 3 period moving averages, forecast the number of calls for week 7.b) Using exponential smoothing, forecast the number of calls for week 7.c) Compare these two forecasting techniques using Mean Squared Errors (MSE) measure. Which one is better? F1 = F, + a(D, – F,)MA3 = (D1+D2+D3)/3WeekCallsМАЗESSquared Errors with MA3 Squared Errors with ES1252.28335426529622

1) The 3-period moving average forecast can be determined in excel as follows: Thus, the forecast…

Answered: F1 = F, + a(D, – F,) MA3 = (D1+D2+D3)/3…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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please answer in excel

Jean’s Copiers sells and repairs photocopy machines. The manager needs weekly forecasts of service calls so that she can schedule the personnel. The manager uses α = 0.3 for exponential smoothing, and the forecast for the first week was 24 calls. The manager also uses 3 weekly moving averages technique.

a) Using 3 period moving averages, forecast the number of calls for week 7.
b) Using exponential smoothing, forecast the number of calls for week 7.
c) Compare these two forecasting techniques using Mean Squared Errors (MSE) measure. Which one is better?

F1 = F, + a(D, – F,)
MA3 = (D1+D2+D3)/3
Week
Calls
МАЗ
ES
Squared Errors with MA3 Squared Errors with ES
1
25
2.
28
3
35
4
26
5
29
6
22

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