The data in the table below are the amounts of crude oil (millions of barrels) imported into

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The data in the table below are the amounts of crude oil (millions of barrels) imported into the United States from the Organization of Petroleum Exporting Countries (OPEC) for the years 1995-2015.

Imports, Y; Year 1995 1996 1997 1998 1999 1 1544 1541 3 4 1668 1790 1808 1904 2018 1681 1884 2086 2039 2000 2001 2002 20

a. Construct two exponentially smoothed series for this time series, using w = .1 and w = .9.
b. Plot the original series and the two smoothed series on the same graph. Which smoothed series looks more like the original series? Why?

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Statistics For Business And Economics

ISBN: 9780134506593

13th Edition

Authors: James T. McClave, P. George Benson, Terry Sincich

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