The following data show residential and commercial natural gas consumption (quadrillion Btu) from 1985 through 2000. a.
Question:
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 €œsmoother€ when N = 5?
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a Using Excel to generate and graph the 3year moving average b Usi...View the full answer
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