The following table shows the number of televisions sold over the last ten years at a local electronic store. Year TV Sales 1. 150 2. 300 3. 480 4. 600 5. 630 6. 640 7. 700 8. 825 9. 900 10. 980 Using trend projection, develop a formula to predict sales for years 11 and 12. You have to show all working. You will need to develop a table to calculate the slope and the intercept. [9 marks] 2. Use that formula to forecast television sales for years 11 and 12. [2 marks]

The following table shows the number of televisions sold over the last ten years at a local electronic store. Year TV Sales 1. 150 2. 300 3. 480 4. 600 5. 630 6. 640 7. 700 8. 825 9. 900 10. 980 Using trend projection, develop a formula to predict sales for years 11 and 12. You have to show all working. You will need to develop a table to calculate the slope and the intercept. [9 marks] 2. Use that formula to forecast television sales for years 11 and 12. [2 marks]

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Description: The following table shows the number of televisions sold over the last ten years at a local electronic store.YearTV Sales1. 1502. 3003. 4804. 6005. 6306. 6407. 7008. 8259. 90010. 980 Using tren

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter13: Regression And Forecasting Models

Section13.6: Moving Averages Models

Problem 20P: The file P13_20.xlsx contains the monthly sales of iPod cases at an electronics store for a two-year...

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The file P13_22.xlsx contains total monthly U.S. retail sales data. While holding out the final six months of observations for validation purposes, use the method of moving averages with a carefully chosen span to forecast U.S. retail sales in the next year. Comment on the performance of your model. What makes this time series more challenging to forecast?
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