EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 9780100460461
Author: Anderson
Publisher: YUZU
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Textbook Question
Chapter 1, Problem 4SE
Table 1.7 shows data for seven colleges and universities. The endowment (in billions of dollars) and the percentage of applicants admitted are shown (USA Today, February 3, 2008). The state each school is located in, the campus setting, and the NCAA Division for varsity teams were obtained from the National Center of Education Statistics website, February 22, 2008.
- a. How many elements are in the data set?
- b. How many variables are in the data set?
- c. Which of the variables are categorical and which are quantitative?
TABLE 1.7 DATA FOR SEVEN COLLEGES AND UNIVERSITIES
| School | State | Campus Setting | Endowment ($ billions) | % Applicants Admitted | NCAA Division |
| Amherst College | Massachusetts | Town: Fringe | 1.7 | 18 | III |
| Duke | North Carolina | City: Midsize | 5.9 | 21 | I-A |
| Harvard University | Massachusetts | City: Midsize | 34.6 | 9 | I-AA |
| Swarthmore College | Pennsylvania | Suburb: Large | 1.4 | 18 | III |
| University of Pennsylvania | Pennsylvania | City: Large | 6.6 | 18 | I-AA |
| Williams College | Massachusetts | Town: Fringe | 1.9 | 18 | III |
| Yale University | Connecticut | City: Midsize | 22.5 | 9 | I-AA |
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Worksheet 10
Jesse runs a small business selling and delivering mealie meal to the spaza shops.
He charges a fixed rate of R80, 00 for delivery and then R15, 50 for each packet of
mealle meal he delivers. The table below helps him to calculate what to charge
his customers.
10
20
30
40
50
Packets of mealie
meal (m)
Total costs in Rands
80
235
390
545
700
855
(c)
10.1.
Define the following terms:
10.1.1. Independent Variables
10.1.2. Dependent Variables
10.2.
10.3.
10.4.
10.5.
Determine the independent and dependent variables.
Are the variables in this scenario discrete or continuous values? Explain
What shape do you expect the graph to be? Why?
Draw a graph on the graph provided to represent the information in the
table above.
TOTAL COST OF PACKETS OF MEALIE MEAL
900
800
700
600
COST (R)
500
400
300
200
100
0
10
20
30
40
60
NUMBER OF PACKETS OF MEALIE MEAL
Let X be a random variable with support SX = {−3, 0.5, 3, −2.5, 3.5}. Part ofits probability mass function (PMF) is given bypX(−3) = 0.15, pX(−2.5) = 0.3, pX(3) = 0.2, pX(3.5) = 0.15.(a) Find pX(0.5).(b) Find the cumulative distribution function (CDF), FX(x), of X.1(c) Sketch the graph of FX(x).
Chapter 1 Solutions
EBK STATISTICS FOR BUSINESS & ECONOMICS
Ch. 1 - Discuss the differences between statistics as...Ch. 1 - The U.S. Department of Energy provides fuel...Ch. 1 - Refer to Table 1.6. a. What is the average miles...Ch. 1 - Table 1.7 shows data for seven colleges and...Ch. 1 - Consider the data set in Table 1.7 a. Compute the...Ch. 1 - Foreign Affairs magazine conducted a survey to...Ch. 1 - The Kroger Company is one of the largest grocery...Ch. 1 - The FinancialTimes/Harris Poll is a monthly online...Ch. 1 - The Commerce Department reported receiving the...Ch. 1 - The Bureau of Transportation Statistics Omnibus...
Ch. 1 - J.D. Power and Associates conducts vehicle quality...Ch. 1 - The Hawaii Visitors Bureau collects data on...Ch. 1 - Figure 1.8 provides a bar chart showing the amount...Ch. 1 - The following data show the number of rental cars...Ch. 1 - Every year, the U.S. Coast Guard collects data and...Ch. 1 - A manager of a large corporation recommends a...Ch. 1 - A random telephone survey of 1021 adults (aged 18...Ch. 1 - A Bloomberg Businessweek North American subscriber...Ch. 1 - A survey of 131 investment managers in Barrons Big...Ch. 1 - A seven-year medical research study reported that...Ch. 1 - The Nielsen Company surveyed consumers in 47...Ch. 1 - Pew Research Center is a nonpartisan polling...Ch. 1 - A sample of midterm grades for five students...Ch. 1 - Table 1.8 shows a data set containing information...
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