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4.6 The monthly sales for Telco Batteries, Inc., we lows: Month Sales January February 20 21 March 15 April 14

4.6 The monthly sales for Telco Batteries, Inc., we lows: Month Sales January February 20 21 March 15 April 14

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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Question 4.6

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4.6 The monthly sales for Telco Batteries, Inc., were as follows: .. Month Sales January February 20 21 March 15 April May June 14 13 16 17 July August September 18 20 October 20 November 21 December 23 a) Plot the monthly sales data. b) Forecast January sales using each of the following: i) Naive method. ii) A 3-month moving average. iii) A 6-month weighted average using.1, .1,.1, .2, .2, and .3, with the heaviest weights applied to the most recent months. iv) Exponential smoothing using an a .3 and a September forecast of 18. %3D v) A trend projection. c) With the data given, which method would allow you to forecast next March's sales? P
Transcribed Image Text:4.6 The monthly sales for Telco Batteries, Inc., were as follows: .. Month Sales January February 20 21 March 15 April May June 14 13 16 17 July August September 18 20 October 20 November 21 December 23 a) Plot the monthly sales data. b) Forecast January sales using each of the following: i) Naive method. ii) A 3-month moving average. iii) A 6-month weighted average using.1, .1,.1, .2, .2, and .3, with the heaviest weights applied to the most recent months. iv) Exponential smoothing using an a .3 and a September forecast of 18. %3D v) A trend projection. c) With the data given, which method would allow you to forecast next March's sales? P
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