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A textbook publishing company has compiled data on total annual sales of its business texts for the preceding nine years: Year Sales (000): 1 37.60 2 3 4 5 6 9 42.40 49.30 53.40 55.20 57.70 60.80 69.20 74.70 Click here for the Excel Data File a. Using an appropriate model, forecast textbook sales for each of the next five years. (Round your intermediate calculations 3 decimal places and final answers to 2 decimal places.)

A textbook publishing company has compiled data on total annual sales of its business texts for the preceding nine years: Year Sales (000): 1 37.60 2 3 4 5 6 9 42.40 49.30 53.40 55.20 57.70 60.80 69.20 74.70 Click here for the Excel Data File a. Using an appropriate model, forecast textbook sales for each of the next five years. (Round your intermediate calculations 3 decimal places and final answers to 2 decimal places.)

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Year Forecast 10 Year Sales (000): 11 01 O No O Yes b. Compute +/- 2s control limits for the control chart for forecast errors using just data from the original nine periods. (Round your intermediate calculations to 4 decimal places and final answer to 2 decimal places.) Control limits are 12 c. Suppose actual sales for the next five years turn out as follows: 10 11 12 13 77.20 84.10 88.50 91.50 Is the forecast performing adequately? 13 14 96.50 14
Transcribed Image Text:Year Forecast 10 Year Sales (000): 11 01 O No O Yes b. Compute +/- 2s control limits for the control chart for forecast errors using just data from the original nine periods. (Round your intermediate calculations to 4 decimal places and final answer to 2 decimal places.) Control limits are 12 c. Suppose actual sales for the next five years turn out as follows: 10 11 12 13 77.20 84.10 88.50 91.50 Is the forecast performing adequately? 13 14 96.50 14
A textbook publishing company has compiled data on total annual sales of its business texts for the preceding nine years: Year Sales (000): Year Forecast 1 37.60 10 Click here for the Excel Data File a. Using an appropriate model, forecast textbook sales for each of the next five years. (Round your intermediate calculations t 3 decimal places and final answers to 2 decimal places.) Year 2 42.40 0+ 10 3 49.30 11 11 4 5 7 8 53.40 55.20 57.70 60.80 69.20 74.70 b. Compute +/- 2s control limits for the control chart for forecast errors using just data from the original nine periods. (Round your intermediate calculations to 4 decimal places and final answer to 2 decimal places.) Control limits are c. Suppose actual sales for the next five years turn out as follows: 12 12 13 13 14 14
Transcribed Image Text:A textbook publishing company has compiled data on total annual sales of its business texts for the preceding nine years: Year Sales (000): Year Forecast 1 37.60 10 Click here for the Excel Data File a. Using an appropriate model, forecast textbook sales for each of the next five years. (Round your intermediate calculations t 3 decimal places and final answers to 2 decimal places.) Year 2 42.40 0+ 10 3 49.30 11 11 4 5 7 8 53.40 55.20 57.70 60.80 69.20 74.70 b. Compute +/- 2s control limits for the control chart for forecast errors using just data from the original nine periods. (Round your intermediate calculations to 4 decimal places and final answer to 2 decimal places.) Control limits are c. Suppose actual sales for the next five years turn out as follows: 12 12 13 13 14 14
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