Question: Problem 15-08 (Algorithmic) Refer again to the gasoline sales time series data in the following table. Week Sales (1000s of gallons) a. Using a weight

Problem 15-08 (Algorithmic) Refer again to the gasoline sales time series data in the following table. Week Sales (1000s of gallons) a. Using a weight of 1/2 for the most recent observation, 1/3 for the second most recent, and 1/6 for third most recent, compute a three-week weighted moving average for the time series. Use rounded for two decimal places values for intermediate calculations. Use minus sign for negat values. Week Weighted Moving Sales | Average Forecast | Forecast Error (Error)? Check My Work Previous Ne Weighted Moving Average Forecast Forecast Error (Error) Week Sales 25 21.33 X 5.33 x 13.4 721 8 17 DTI 924 1021 1114 D IL | 12 | 25 | | | | | Total b. Compute the MSE for the weighted moving average in part a. Do you prefer this weighted moving average to the unweighted moving average? Remember that the MSE for the unweighted moving average is 10.22. Round your answer to two decimal places. MSE = 16.23 x Check My Work

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