Suppose these data show the number of gallons of gasoline sold by a gasoline distributor in Bennington, Vermont, over the past 12 weeks. Week Sales (1,000s of gallons) 1 17 2 21 3 19 4 24 5 18 6 16 7 21 8 19 9 22 10 21 11 16 12 23 *PLEASE REFER TO ATTACHED IMAGE FOR DATA! PART 1.Compute four-week and five-week moving averages for the time series. PART 2. Compute the MSE for the four-week moving average forecasts. (Round your answer to two decimal places.) PART 3.Compute the MSE for the five-week moving average forecasts. (Round your answer to two decimal places.)

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