Question: A sporting good store needs your help in forecasting quarterly sales using the additive season method. Below are 12 quarters of data from the store.

A sporting good store needs your help in forecasting quarterly sales using the additive season method. Below are 12 quarters of data from the store. Alpha is equal 0.764 and beta is equal to 1. B C D E F G Time Actual Base Seasonal Predicted 2 Year Qtr Period Sales Level Factor Sales 3 1 1 284 331.25 -47.250 4 2 2 184 331.25 -147.250 5 3 3 365 331.25 33.75 16 4 4 492 331.25 160.75 3 1 1 4 2 3 5 2 3 4 7 2 1 5 485 8 8 2 6 277 606 9 3 7 10 4 722 8 9 11 3 1 763 12 N 593 13 3 10 11 12 912 14 4 1145 15 16 What is the Forecast (predicted sales) for year 4 quarter 12 (answer to 1 decimal place XXX.x)

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