(a) The Marino Company in Ventura County, southern California sells swimming pool equipment. The sales for swimming pool motors in southern California over the last 12 months is given in Table Q4(a). Forecast the demand from March to December of the current year using the following forecasting models. Use excel for the tabulation. (1) Three-month simple moving average; (i)Three-month weighted moving average. Use 0.7, 0.2, and 0.1 for the weights, with 0.7 for the most recent period, and 0.1 for the oldest period. (ii) Simple linear regression; (iv) Determine the MAD, and SE for all the models, and choose which model is most appropriate. Table Q4(a) Marino Company Sales of Swimming pool motors Quantity (units) 11,596 Month January February March 14,438 16,861 10,002 April May 15,106 June 17,941 July August September October 11,877 14,290 17,363 12,430 14,858 November December 16,833
(a) The Marino Company in Ventura County, southern California sells swimming pool equipment. The sales for swimming pool motors in southern California over the last 12 months is given in Table Q4(a). Forecast the demand from March to December of the current year using the following forecasting models. Use excel for the tabulation. (1) Three-month simple moving average; (i)Three-month weighted moving average. Use 0.7, 0.2, and 0.1 for the weights, with 0.7 for the most recent period, and 0.1 for the oldest period. (ii) Simple linear regression; (iv) Determine the MAD, and SE for all the models, and choose which model is most appropriate. Table Q4(a) Marino Company Sales of Swimming pool motors Quantity (units) 11,596 Month January February March 14,438 16,861 10,002 April May 15,106 June 17,941 July August September October 11,877 14,290 17,363 12,430 14,858 November December 16,833
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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