Mathematics, 20.08.2021 03:00 yeidiyan9490
The file P12_47.xlsx consists of the monthly retail sales levels of U. S. gasoline service stations.
a. Is there a seasonal pattern in these data? If so, how do you explain this seasonal pattern? Also, if necessary, deseasonalize these data using the ratio-to-moving-average method.
b. Forecast this time series for the first four months of the next year using the most appropriate method for these data. Defend your choice of forecasting method.
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The file P12_47.xlsx consists of the monthly retail sales levels of U. S. gasoline service stations....
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