Use the exponential smoothing method to forecast the number of units for June to January. The initial forecast for May was 105 units; a = 0.2. b. Calculate the absolute percentage error for each month from June through December and the MAD and MAPE of forecast error as of the end of December. c. Calculate the tracking signal as of the end of December. What can you say about the performance of your forecasting method?

Use the exponential smoothing method to forecast the number of units for June to January. The initial forecast for May was 105 units; a = 0.2. b. Calculate the absolute percentage error for each month from June through December and the MAD and MAPE of forecast error as of the end of December. c. Calculate the tracking signal as of the end of December. What can you say about the performance of your forecasting method?

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter13: Regression And Forecasting Models

Section13.3: Simple Regression Models

Problem 2P: The file P13_02.xlsx contains five years of monthly data on sales (number of units sold) for a...

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