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Week Sales (1,000s of gallons) 1 18 2 22 3 15 455544 24 18 15 7 21 8 19 9 21 10 11 12
Week Sales (1,000s of gallons) 1 18 2 22 3 15 455544 24 18 15 7 21 8 19 9 21 10 11 12 22 20 16 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. 4-Week 5-Week Week Sales Moving Moving Average Average 1 2 4 8 10 15 21 19 21 22222222220 18. 15 24 18. 11111
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