Question

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 index factors. 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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  • CreatedApril 09, 2014
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