Question: need 9&12 plz The following table shows the past two years of quarterly sales information. Assume that there are both trend and seasonal factors and

need 9&12 plz need 9&12 plz The following table shows the past two years of

The following table shows the past two years of quarterly sales information. Assume that there are both trend and seasonal factors and that the seasonal cycle is one yeat. Use regression and seasonal indexes to forecast quarterly sales for the next year: Note: Do not round intermediate calculations. Round your answers to the nearest whole number. Answer is complete but not entirely correct

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