Question: The data below(stored in Desktoplaptop) represent the hours per day spent by American desktop/laptop users from 2008 to 2014. a. Plot the time series. b.

The data below(stored in Desktoplaptop) represent the hours per day spent by American desktop/laptop users from 2008 to 2014.

Year Hours per Day Year Hours per Day 2008 2.2 2012 2.5

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 2015?

e. Repeat (c) and (d), using W = 0.25.

f. Compare the results of (d) and (e).

g. What conclusions can you reach about desktop/laptop use by American users?

Year Hours per Day Year Hours per Day 2008 2.2 2012 2.5 2009 2.3 2013 2.3 2010 2.4 2014 2.4 2011 2.6 Source: Data extracted from E. C. Baig, "The Hottest Digital Trends," USA Today, May 26, 2015, p. BI.

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