Question: The following data show residential and commercial natural gas consumption

The following data show residential and commercial natural gas consumption (quadrillion Btu) from 1992 through 2007.
a. Construct a graph of the time series, then superimpose a three-year centered moving average over the original series.
b. Superimpose a five-year centered moving average over the original series. Why is the moving average “smoother” when N = 5?

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  • CreatedSeptember 08, 2015
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