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A textbook publishing company has compiled data on total annual sales of its business texts for the preceding nine years: 9 73.60 Year Sales (000): 1 38.70 Click here for the Excel Data File Year Forecast 2 44.70 10 a. Using an appropriate model, forecast textbook sales for each of the next five years. (Round your intermediate calculations to 3 decimal places and final answers to 2 decimal places.) 3 4 5 6 7 48.50 50.70 55.10 59.20 60.30 11 12 13 8 68.40 14

A textbook publishing company has compiled data on total annual sales of its business texts for the preceding nine years: 9 73.60 Year Sales (000): 1 38.70 Click here for the Excel Data File Year Forecast 2 44.70 10 a. Using an appropriate model, forecast textbook sales for each of the next five years. (Round your intermediate calculations to 3 decimal places and final answers to 2 decimal places.) 3 4 5 6 7 48.50 50.70 55.10 59.20 60.30 11 12 13 8 68.40 14

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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): Click here for the Excel Data File 1 2 38.70 44.70 Year Forecast 10 a. Using an appropriate model, forecast textbook sales for each of the next five years. (Round your intermediate calculations to 3 decimal places and final answers to 2 decimal places.) 3 48.50 11 4 5 6 7 8 9 50.70 55.10 59.20 60.30 68.40 73.60 12 13 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): Click here for the Excel Data File 1 2 38.70 44.70 Year Forecast 10 a. Using an appropriate model, forecast textbook sales for each of the next five years. (Round your intermediate calculations to 3 decimal places and final answers to 2 decimal places.) 3 48.50 11 4 5 6 7 8 9 50.70 55.10 59.20 60.30 68.40 73.60 12 13 14
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: 10 11 77.30 81.60 12 89.40 Year Sales (000): 01 Is the forecast performing adequately? O No Ⓒ Yes 13 90.90 14 99.30
Transcribed Image Text: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: 10 11 77.30 81.60 12 89.40 Year Sales (000): 01 Is the forecast performing adequately? O No Ⓒ Yes 13 90.90 14 99.30
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