Year This Year 300 275 400 375 425 350 450 425 400 400 460 350 400 350 300 275 375 350 500 550 500 for the fourth quarter of this year using a three-quarter, weighted moving average. Weight the most recent quarter .5, the

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter13: Regression And Forecasting Models
Section13.7: Exponential Smoothing Models
Problem 28P: The file P13_28.xlsx contains monthly retail sales of U.S. liquor stores. a. Is seasonality present...
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Here are the data for the past 21 months for actual sales of a product:
Last Year This Year
275
375
350
425
400
350
350
275
350
January
February
March
April
May
June
July
August
300
400
425
450
400
460
400
300
September 375
October
500
November
550
December
500
Develop a forecast for the fourth quarter of this year using a three-quarter, weighted moving average. Weight the most recent quarter .5, the second most recent .25, and the third
.25.
1050
1500
1000
1031
Transcribed Image Text:Here are the data for the past 21 months for actual sales of a product: Last Year This Year 275 375 350 425 400 350 350 275 350 January February March April May June July August 300 400 425 450 400 460 400 300 September 375 October 500 November 550 December 500 Develop a forecast for the fourth quarter of this year using a three-quarter, weighted moving average. Weight the most recent quarter .5, the second most recent .25, and the third .25. 1050 1500 1000 1031
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