The file Natural Gas contains the monthly average wellhead and residential prices for natural gas (dollars per
Question:
a. Construct a time series plot.
b. What pattern, if any, is present in the data?
c. Construct a scatter plot of the wellhead price and the residential price.
d. What conclusion can you reach about the relationship between the wellhead price and the residential price?
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Related Book For
Business Statistics A First Course
ISBN: 9780321979018
7th Edition
Authors: David M. Levine, Kathryn A. Szabat, David F. Stephan
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