The following is a set of data from a sample of n = 5:
7 4 9 8 2
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.
d. Compare your answer in (c) with that from Problem 3.1 (d) on page 111. Discuss.