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Feb. March April May June July 15 MONTH Jan. SALES (IN THOUSANDS) 11 14 16 10 17 11 Aug. Sept. 17 Oct. 12 MONTH SALES (IN THOUSANDS) 14 Nov. Dec. Jan. 16 14 11

Feb. March April May June July 15 MONTH Jan. SALES (IN THOUSANDS) 11 14 16 10 17 11 Aug. Sept. 17 Oct. 12 MONTH SALES (IN THOUSANDS) 14 Nov. Dec. Jan. 16 14 11

Practical Management Science
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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Sales of industrial vacuum cleaners at Larry Armstrong Supply Co. over the past I 3 months are shown below:                                                                                                                                                 a) Using a moving average with three periods, determine the demand for vacuum cleaners for next February.
b) Using a weighted moving average with three periods, determine the demand for vacuum cleaners for February. Use 3, 2, and l for the weights of the most recent, second most recent, and third most recent periods, respectively. For example, if you were forecasting the demand for February, November would have a weight of l, December would have a weight of 2, and January would have a weight of3.
c) Using MAD, determine which is the better forecast.
d) What other factors might Armstrong consider in forecasting sales?                                                                
Feb. March April May June July 15 MONTH Jan. SALES (IN THOUSANDS) 11 14 16 10 17 11 Aug. Sept. 17 Oct. 12 MONTH SALES (IN THOUSANDS) 14 Nov. Dec. Jan. 16 14 11
Transcribed Image Text:Feb. March April May June July 15 MONTH Jan. SALES (IN THOUSANDS) 11 14 16 10 17 11 Aug. Sept. 17 Oct. 12 MONTH SALES (IN THOUSANDS) 14 Nov. Dec. Jan. 16 14 11
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