How much time do Americans living in cities spend commuting to work each week? The data in the file CommutingTime include this cost for 30 cities. Source: Data extracted from “The High Cost of Congestion,” NYC Economic Brief, March 2015, p. 3. For the time Americans living in cities spend commuting to work each week: a. Construct a percentage histogram. b. Construct a cumulative percentage polygon. c. What conclusions can you reach concerning the time Americans living in cities spend commuting to work each week?