The file SavingRate-MMCD contains the yields for a money market account and a five-year certificate of deposit (CD), for 25 banks in the United States, as of March 29, 2010.
For each type of account:
a. Compute the first quartile (Q1), the third quartile (Q3), and the interquartile range.
b. List the five-number summary.
c. Construct a boxplot and describe its shape.