Sales of quilt covers at Bud Banis's department store in Carbondale over the past year are shown

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Sales of quilt covers at Bud Banis's department store in Carbondale over the past year are shown below. Management prepared a forecast using a combination of exponential smoothing and its collective judgment for the 4 months ( March, April, May, and June):

Sales of quilt covers at Bud Banis’s department store in


a) Compute MAD and MAPE for management's technique.

b) Do management's results outperform (i.e., have smaller MAD and MAPE than) a naive forecast?

c) Which forecast do you recommend, based on lower forecast error?

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Operations Management

ISBN: 978-0133408010

11th edition

Authors: Jay Heizer, Barry Render

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