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Time-series plot

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The attached excel sheet contains the weekly average price of gasoline in the United States from January 1, 2007, to January 12, 2009. Prices are in dollars per gallon.
A) Construct a time-series plot
B) What pattern, if any, is present in the data?

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This solution constructs a time-series plot and evaluates the data patterns.

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Solution provided by:
Champake Mendis, MEngSc, PhD
Education
  • BSc (Hons), University of Colombo - Sri Lanka
  • MEngSc, University of Melbourne
  • Certificate IV in Training & Assessment , Australian Business Council
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