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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 with the heaviest weights applied to the most recent montE iv) Exponential smoothing using an a = .3 and a Septemt forecast of 18.

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 with the heaviest weights applied to the most recent montE iv) Exponential smoothing using an a = .3 and a Septemt forecast of 18.

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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4.6 The monthly sales for Telco Batteries, Inc., were as follows: Month Sales 20 January February March 21 15 14 April Мay 13 June 16 17 July August September October 18 20 20 November 21 December 23 a) Plot the monthly sales data. b) Forecast January sales using each of the following: i) Naive method. ü) 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. v) A trend projection.
Transcribed Image Text:4.6 The monthly sales for Telco Batteries, Inc., were as follows: Month Sales 20 January February March 21 15 14 April Мay 13 June 16 17 July August September October 18 20 20 November 21 December 23 a) Plot the monthly sales data. b) Forecast January sales using each of the following: i) Naive method. ü) 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. v) A trend projection.
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