Question: gasoline sales time series data in the given table. Week Sales (1,000s of gallons) 1 18 2 22 3 15 4 24 5 18 6

gasoline sales time series data in the given table. Week Sales (1,000s of gallons) 1 18 2 22 3 15 4 24 5 18 6 15 7 21 8 19 9 21 10 20 11 16 12 22 (a) Compute four-week and five-week moving averages for the time series. Do not round intermediate calculations. If required, round your answers to two decimal places. Week Sales 4-Week Moving Average 5-Week Moving Average 1 18 2 22 3 15 4 24 5 18 6 15 7 21 8 19 9 21 10 20 11 16 12 22

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