Question: The file Dark Chocolate represent the cost ($) per ounce for a sample of 14 dark chocolate bars:

0.68 0.72 0.92 1.14 1.42 0.94 0.77 0.57 1.51 0.57 0.55 0.86 1.41 0.90

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.