Question: The data below (stored in DesktopLaptop) represent the hours per day spent by American desktop/ laptop users from 2008 to 2016. a. Plot the time

The data below (stored in DesktopLaptop) represent the hours per day spent by American desktop/ laptop users from 2008 to 2016.

Hours per Day Year Year Hours per Day 2.3 2013 2014 2015 2016 2008 2009 2.2 2.3 2.2 2010 2011 2012 2.4 2.6 2.5 2.2 2.2


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 2017?

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?

Hours per Day Year Year Hours per Day 2.3 2013 2014 2015 2016 2008 2009 2.2 2.3 2.2 2010 2011 2012 2.4 2.6 2.5 2.2 2.2

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