The file NaturalGas contains the monthly average commercial and residential prices for natural gas (dollars per thousand
Question:
a. Construct a time-series plot.
b. What pattern, if any, is present in the data?
c. Construct a scatter plot of the commercial price and the residential price.
d. What conclusion can you reach about the relationship between the commercial price and the residential price?
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Step by Step Answer:
a b The commercial average price was highest in th...View the full answer
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Related Book For 
Statistics For Managers Using Microsoft Excel
ISBN: 9780134173054
8th Edition
Authors: David M. Levine, David F. Stephan, Kathryn A. Szabat
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