The Super Bowl is a big viewing event watched by close to 200 million Americans that is also a big event for advertisers. The file SuperBowlAds contains the number of ads that ran between the opening kickoff and the final whistle and the total elapsed run time (in minutes) of the commercials for the 2006 to 2015 seasons.

Source: Data extracted from “SuperBowl Viewers Don’t Just Watch the Game, USA Today, February 5, 2016, p. 3B.

a. Construct a time-series plot.

b. What pattern, if any, is present in the number of ads that ran between the opening kickoff and the final whistle?

c. What pattern, if any, is present in the total elapsed run time (in minutes) of the commercials for the 2006 to 2015 seasons?