What is the unadjusted and adjusted forecast for Accuweather's mercury needs for January of 2010? a. 740 and 851 respectively b. 520 and 630 respectively c. 950 and 1200 respectively d. None of the above

Practical Management Science
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Author:WINSTON, Wayne L.
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Chapter2: Introduction To Spreadsheet Modeling
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The Accuweather Corporation manufacturers barometers and thermometers for weather forecasters. In an attempt to
forecast its future needs for mercury, Accurweather's chief economist estimated average monthly mercury needs as:
N-500 + 10X
where N= monthly mercury needs (units) and X= time period in months (January 2008= 0). The following monthly
seasonal adjustment factors have been estimated using data from the past five years:
Month
Adjustment Factor
January
April
July
September
December
15%
10%
-20%
5%
-10%
What is the unadjusted and adjusted forecast for Accuweather's mercury needs for January of 2010?
a. 740 and 851 respectively
b. 520 and 630 respectively
c. 950 and 1200 respectively
d. None of the above
Transcribed Image Text:The Accuweather Corporation manufacturers barometers and thermometers for weather forecasters. In an attempt to forecast its future needs for mercury, Accurweather's chief economist estimated average monthly mercury needs as: N-500 + 10X where N= monthly mercury needs (units) and X= time period in months (January 2008= 0). The following monthly seasonal adjustment factors have been estimated using data from the past five years: Month Adjustment Factor January April July September December 15% 10% -20% 5% -10% What is the unadjusted and adjusted forecast for Accuweather's mercury needs for January of 2010? a. 740 and 851 respectively b. 520 and 630 respectively c. 950 and 1200 respectively d. None of the above
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