The file Computer Sales contains the U.S. total computer and software sales (in $millions) from 1992 through
Question:
a. Plot the data.
b. Compute a linear trend forecasting equation and plot the trend line.
c. Compute a quadratic trend forecasting equation and plot the results.
d. Compute an exponential trend forecasting equation and plot the results.
e. Which model is the most appropriate?
f. Using the most appropriate model, forecast U.S. total computer and software sales, in millions, for 2012.
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abcd b Linear trend where X is relative to 1992 c Quadrati...View the full answer
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Related Book For 
Statistics For Managers Using Microsoft Excel
ISBN: 772
7th Edition
Authors: David M. Levine, David F. Stephan, Kathryn A. Szabat
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