The following data (stored in Movie) represent the yearly movie attendance (in billions) from 2001 to 2009:
Year Attendance
2001........................1.44
2002........................1.60
2003........................1.52
2004........................1.48
2005........................1.38
2006........................1.40
2007........................1.40
2008........................1.36
2009........................1.42
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).