The monthly wellhead and residential prices for natural gas (dollars per thousand cubic feet) in the United

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The monthly wellhead and residential prices for natural gas (dollars per thousand cubic feet) in the United States from 2008 through 2009 are stored in Natural Gas.
For the wellhead price and the residential, price:
a. Do you think the price for natural gas has a seasonal component?
b. Plot the time series. Does this chart support your answer in (a)?
c. Compute an exponential trend forecasting equation for monthly data.
d. Interpret the monthly compound growth rate.
e. Interpret the month multipliers. Do the multipliers support your answers in (a) and (b)?
f. Compare the results for the wellhead prices and the residential prices.
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Related Book For  book-img-for-question

Basic Business Statistics Concepts And Applications

ISBN: 9780132168380

12th Edition

Authors: Mark L. Berenson, David M. Levine, Timothy C. Krehbiel

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