The following data, stored in NASCAR, provide the number of accidents in the NASCAR Sprint Cup series
Question:
Year Accidents
2001........................200
2002........................186
2003........................235
2004........................204
2005........................253
2006........................237
2007........................240
2008........................211
2009........................195
a. Plot the time series.
b. Fit a three-year moving average to the data and plot the results.
c. Using a smoothing coefficient of W = 0.50, exponentially smooth the series and plot the results.
d. What is your exponentially smoothed forecast for 2010?
e. Repeat (c) and (d), using W = 0.25.
f. Compare the results of (d) and (e).
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abcd bcd d 2095 e d 2158596 f A smoothing coeffici...View the full answer
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Related Book For 
Basic Business Statistics Concepts And Applications
ISBN: 9780132168380
12th Edition
Authors: Mark L. Berenson, David M. Levine, Timothy C. Krehbiel
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