Question

(a) Plot U.S. petroleum imports on a graph.
(b) Describe the trend (if any) and discuss possible causes.
(c) Fit both a linear and an exponential trend.
(c) Interpret each fitted trend equation, explaining the implications.
(d) Make a projection for 2010. Do you believe it?
(e) To whom is this issue relevant? Note: Time increments are 5 years, so use t = 11 for the 2010 forecast.


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  • CreatedAugust 19, 2015
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