a. Determine the regression equation. (Round to 2 decimal places.) Regression equation: ŷ = ______ + ______ t b. Determine the specific index for each quarter. (Indexes should be in decimal form (e.g. 1.36 not 136). Rounded to 2 decimal places.) Quarter Quarterly Index Q1 Q2 Q3 Q4
a. Determine the regression equation. (Round to 2 decimal places.) Regression equation: ŷ = ______ + ______ t b. Determine the specific index for each quarter. (Indexes should be in decimal form (e.g. 1.36 not 136). Rounded to 2 decimal places.) Quarter Quarterly Index Q1 Q2 Q3 Q4
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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The following data are the last three years of quarterly sales ($ thousands) for AmeriWeld. They are looking to
| Quarter | t | Sales $ thousands (y) |
| 2018 Q1 | 1 | 15 |
| Q2 | 2 | 14 |
| Q3 | 3 | 13 |
| Q4 | 4 | 37 |
| 2019 Q1 | 5 | 54 |
| Q2 | 6 | 34 |
| Q3 | 7 | 67 |
| Q4 | 8 | 73 |
| 2020 Q1 | 9 | 77 |
| Q2 | 10 | 62 |
| Q3 | 11 | 94 |
| Q4 | 12 | 101 |
a. Determine the regression equation. (Round to 2 decimal places.)
Regression equation: ŷ = ______ + ______ t
b. Determine the specific index for each quarter. (Indexes should be in decimal form (e.g. 1.36 not 136). Rounded to 2 decimal places.)
| Quarter | Quarterly Index |
| Q1 | |
| Q2 | |
| Q3 | |
| Q4 |
c. What are the estimated sales (forecast) for the next four quarters? (Values in $thousands. Round to 2 decimal places.)
| Quarter | Forecasted Sales |
| 2021-1 | |
| 2021-2 | |
| 2021-3 | |
| 2021-3 |
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