The data in NewHomeSales includes the median sales price of new single-family houses sold in the United States recorded at the end of each month from January 2000 through December 2016.

Source: Data extracted from bit.ly/2eEcIBR, March 19, 2017.

a. Construct sparklines of new home sales prices by year.

b. What conclusions can you reach concerning the median sales price of new single-family houses sold in the United States from January 2000 through December 2016?

c. Compare the sparklines in (a) to the time-series plot in Problem 2.55 on p. 70.