Question
Use excel to estimate a multiple regression seasonality of sales (as dependent variable) and seasonal dummy variables and time tend (as independent variables). Use the
Use excel to estimate a multiple regression seasonality of sales (as dependent variable) and seasonal dummy variables and time tend (as independent variables). Use the estimation result to predict sales for four quarters of one year ahead. Explain and interpret your results thoroughly.
| Quarter | Year2012 Sales | year2013 Sales | year2014 Sales | year2015 Sales | year2016 Sales |
| 1 | 540.5 | 568.4 | 587 | 597 | 639.5 |
| 2 | 608.5 | 623.8 | 640.2 | 675.3 | 716.5 |
| 3 | 606.6 | 626 | 645.9 | 663.6 | 712.9 |
| 4 | 648.3 | 674.6 | 686.9 | 723.3 | 779.9 |
PLEASE SHOW ALL EXCEL FORMULAS
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Elementary Differential Equations
Authors: William E Boyce, Richard C DiPrima, Douglas B Meade
11th Edition
1119169879, 9781119169871
