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2. Sales of industrial vacuum cleaners at R. Lowenthal Supply Co. over the past 13 months are as follows: SALES ($1,000s) 11 14 16 10 15 17 11 MONTH SALES ($1,000s) January February March April May June July 14 17 12 14 16 11 MONTH August September October November December January 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 1 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 1, December would have a weight of 2, and January would have a weight of 3. c) Evaluate the accuracy of each of these methods.

2. Sales of industrial vacuum cleaners at R. Lowenthal Supply Co. over the past 13 months are as follows: SALES ($1,000s) 11 14 16 10 15 17 11 MONTH SALES ($1,000s) January February March April May June July 14 17 12 14 16 11 MONTH August September October November December January 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 1 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 1, December would have a weight of 2, and January would have a weight of 3. c) Evaluate the accuracy of each of these methods.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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2. Sales of industrial vacuum cleaners at R. Lowenthal Supply Co. over the past 13 months are as follows: SALES ($1,000s) 11 14 16 10 15 17 11 MONTH SALES ($1,000s) January February March April May June July 14 17 12 14 16 11 MONTH August September October November December January 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 1 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 1, December would have a weight of 2, and January would have a weight of 3. c) Evaluate the accuracy of each of these methods. d) What other factors might R. Lowenthal consider in forecasting sales?
Transcribed Image Text:2. Sales of industrial vacuum cleaners at R. Lowenthal Supply Co. over the past 13 months are as follows: SALES ($1,000s) 11 14 16 10 15 17 11 MONTH SALES ($1,000s) January February March April May June July 14 17 12 14 16 11 MONTH August September October November December January 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 1 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 1, December would have a weight of 2, and January would have a weight of 3. c) Evaluate the accuracy of each of these methods. d) What other factors might R. Lowenthal consider in forecasting sales?
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