The file Hotel Away contains the average room price (in US$) paid in 2011 by people of various nationalities while traveling away from their home country:
171 166 159 157 150 148 147 146
Source: Data extracted from www.hotel-price-index.com/2012/ spring/pdf/Hotel-Price-Index-2011-US.pdf.
a. Compute the first quartile (Q1), the third quartile (Q3), and the interquartile range.
b. List the five-number summary.
c. Construct a box plot and describe its shape.