Given the following data for demand at the XYZ Company, calculate the monthly forecast for 2003 using a 3-month moving average. Calculate the Forecast, Error, MAD (mean absolute percentage error), Bias and the TS (tracking signal) . Period Demand Forecast Error MAD Bias TS 2-Oct 2012 800 　　　　　 2-Nov 2012 1000 　　　　　 2-Dec 2012 950 　　　　　 2-Jan 2013 1100 2-Feb 2013 930 2-Mar 2013 1020 2-Apr 2013 870

Given the following data for demand at the XYZ Company, calculate the monthly forecast for 2003 using a 3-month moving average. Calculate the Forecast, Error, MAD (mean absolute percentage error), Bias and the TS (tracking signal) . Period Demand Forecast Error MAD Bias TS 2-Oct 2012 800 　　　　　 2-Nov 2012 1000 　　　　　 2-Dec 2012 950 　　　　　 2-Jan 2013 1100 2-Feb 2013 930 2-Mar 2013 1020 2-Apr 2013 870

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter13: Regression And Forecasting Models

Section13.6: Moving Averages Models

Problem 22P: The file P13_22.xlsx contains total monthly U.S. retail sales data. While holding out the final six...

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Period	Demand	Forecast	Error	MAD	Bias	TS
2-Oct 2012	800
2-Nov 2012	1000
2-Dec 2012	950
2-Jan 2013	1100
2-Feb 2013	930
2-Mar 2013	1020
2-Apr 2013	870