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Answer in Excel: Consider the data below for the sales of widgets: 1. Using seasonal percentages or seasonal indexes, forecast the sales for each season
Answer in Excel:
Consider the data below for the sales of widgets: 1. Using seasonal percentages or seasonal indexes, forecast the sales for each season in year 4, if the annual widgets sales is predicted to be 1500. 2. Develop a regression equation that captures both the trend and seasonality in this data. Use this equation to forecast the sales for each season in year 4.
Season | Year 1 | Year 2 | Year 3 |
Fall | 505 | 240 | 210 |
Winter | 555 | 460 | 365 |
Spring | 400 | 310 | 204 |
Summer | 560 | 450 | 394 |
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