DATAfile: Gasoline These data show the number of gallons of gasoline sold by a gasoline distributor in Bennington, Vermo

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Datafile Gasoline These Data Show The Number Of Gallons Of Gasoline Sold By A Gasoline Distributor In Bennington Vermo 1 (38.87 KiB) Viewed 55 times

Datafile Gasoline These Data Show The Number Of Gallons Of Gasoline Sold By A Gasoline Distributor In Bennington Vermo 2 (31.06 KiB) Viewed 55 times

DATAfile: Gasoline These data show the number of gallons of gasoline sold by a gasoline distributor in Bennington, Vermont, over the past 12 weeks, Week Sales (1,000s of gallons) 1 17 2 21 3 19 4 23 5 18 6 16 7 20 2 18 9 22 10 20 11 15 12 22 (*) Compute four-week and five-week moving averages for the time series 4-Week 5-Week Week Time Series Moving Moving Value Average Average Forecast Forecast 1 1 17 2 21 3 19 4 23 5 18 20 5 16 2025 ✓ 10.6 7 7 20 10 > 194 8 13 10.25 19.2
e Week Time Series Value 4-Week Moving Average Forecast 5-Week Moving Average Forecast 1 17 2 21 19 4 93 s 20 < 5 2025 ✓ 136 ✓ 15 16 20 13 2 10 194 8 1923 < 102 > 22 18 es ✓ 20 19 < 183 11 15 20 < 192 12 22 (b) Compute the HSE for the four-week moving average forecasts, Round your answer to two decimal places Compute the MSE for the five week moving average forecasts Round your answer to two decame places) 36.36 What appears to be the best number of weeks of past data three, four or five) to use in the moving average computation? The rest for the three week moet 10 22 Three weeks appears to be best, because the three-week moving average provides the smallest MSE Three weeks appears to be best because the three moving average provides the largest MSE Four weeks appears to be best, because the four-week moving average provides the watest HSE Five weeks appears to be best because the five week moving average provides the smallest MS one poor better than the others, because they all provide the same MSE Need Help? Med