Question: I need help. Please make sure to get the right answer Using the table Gasoline Sales Time Series, calculate the mean absolute deviation for a

I need help. Please make sure to get the right answer Using the table Gasoline Sales Time Series, calculate the mean absolute deviation for a three day moving average. 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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