Question: Please put in Excel The sales data for two years are as follows. Data are aggregated with two months of sales in each period. a.

Please put in Excel Please put in Excel The sales data for two years are as

The sales data for two years are as follows. Data are aggregated with two months of sales in each "period." a. Plot the data. b. Fit a simple linear regression model to the sales data. c. In addition to the regression model, determine multiplicative seasonal indexes. A full cycle is assumed to be a full year. d. Using the results from parts (b) and (c), prepare a forecast for the next year. The sales data for two years are as follows. Data are aggregated with two months of sales in each "period." a. Plot the data. b. Fit a simple linear regression model to the sales data. c. In addition to the regression model, determine multiplicative seasonal indexes. A full cycle is assumed to be a full year. d. Using the results from parts (b) and (c), prepare a forecast for the next year

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