2.27 University endowments. The National Association of College and
University Business Officers collects data on college endowments. In 2013, its
report included the endowment values of 849 colleges and universities in the
United States and Canada. When the endowment values are arranged in order,
what are the locations of the median and the quartiles in this ordered list?
2.29 Comparing graduation rates. An alternative presentation to compare the
graduation rates in Table 1.1 (page 22) by region of the country reports fivenumber summaries and uses boxplots to display the distributions. Do the boxplots
fail to reveal any important information visible in the stemplots of Figure 2.5?
Which plots make it simpler to compare the regions? Why?
2.44 Athletes’ salaries
. The Montreal Canadiens were founded in 1909 and
are the longest continuously operating professional ice hockey team. They have
won 24 Stanley Cups, making them one of the most successful professional sports
teams of the traditional four major sports of Canada and the United States.
Table 2.1 (see below) gives the salaries of the 2013-14 roster.19 Provide the team
owner with a full description of the distribution of salaries and a brief summary of
its most important features.
Oliver Samson Arcand/NHLI via Getty Images
Exercise 2.44- 2.39 ask you to analyze data without having the details outlined for
you. The exercise statements give you the State step of the four-step process. In
your work, follow the Plan, Solve, and Conclude steps as illustrated in
Example 2.9
2.46 Do good smells bring good business?
Businesses know that
customers often respond to background music. Do they also respond to odors?
Nicolas Guéguen and his colleagues studied this question in a small pizza
restaurant in France on Saturday evenings in May. On one evening, a relaxing
lavender odor was spread through the restaurant; on another evening, a stimulating
lemon odor; a third evening served as a control, with no odor. Table 2.2 (see
below) shows the amounts (in euros) that customers spent on each of these
evenings.20 Compare the three distributions. Were both odors associated with
increased customer spending?