Question: need help. show your work please. Using the table Gasoline Sales Time Series, calculate the forecast for gasoline sales (in thousands) for Week 13 using

need help. show your work please. Using the table Gasoline Sales Time Series, calculate the forecast for gasoline sales (in thousands) for Week 13 using a three day weighted moving average. Use a weight of .60 for the most recent observation, .30 for the second most recent, and .10 for the third most recent. Gasoline Sales Time Series Week sales (000s of gallons) 1 17 2 21 3 19 4 23 5 18 6 16 7 20 8 18 9 22 10 20 11 15 12 22

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