Introduction to Business Statistics
7th Edition
ISBN: 9781111792374
Author: WEIERS
Publisher: Cengage Learning
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Chapter 4.3, Problem 4.12E
To determine
To explain whether providing the monetary rewards will leads to the bias in response.
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A school newspaper is going to investigate students’perceptions regarding the campus security guards. They
plan to survey 100 students at the school. The editor-in-chief tells his staff that he is worried about undercov-erage bias created by chronically truant students. His
concern is. . .a) unwarranted because some students may refuse toparticipate and that is inevitable.b) justified because chronically truant students will be
difficult to survey and will probably have a dispropor-tionately negative view of the security guards.
c) unwarranted because students who cannot be sur-veyed are not a part of the population of interest.
d) unwarranted because students who cannot be sur-veyed are not a part of the sample.
e) justified because people need to be forced to answer asurvey in order for the results to be valid.
In Jolie’s new Thai restaurant, she observes the age of her customers and notes down which of the groups they belong to – ’18 years old and below’ or ‘above 18 years old’, and whether they spent more than $30 on a single meal - ‘big spender’ or ‘non-big spender’.
Given that rate (big spender | above 18 years old) > rate (big spender | 18 years old and below), what conclusion can be made?
a) Being a big spender and being above 18 years old are negatively associated.b) Being a big spender and being above 18 years old are positively associated.c) Being above 18 years old is positively associated with visiting her restaurant.d) Being above 18 years old causes one to become a big spender.
Chapter 4 Solutions
Introduction to Business Statistics
Ch. 4.2 - What is the difference between primary data and...Ch. 4.2 - A published article reports that 60% of U.S....Ch. 4.2 - A pharmaceutical finn’s annual report states that...Ch. 4.2 - Prob. 4.4ECh. 4.3 - Prob. 4.5ECh. 4.3 - Prob. 4.6ECh. 4.3 - Prob. 4.7ECh. 4.3 - Prob. 4.8ECh. 4.3 - Prob. 4.9ECh. 4.3 - Prob. 4.10E
Ch. 4.3 - Prob. 4.11ECh. 4.3 - Prob. 4.12ECh. 4.3 - Prob. 4.13ECh. 4.4 - Prob. 4.14ECh. 4.4 - Prob. 4.15ECh. 4.4 - Prob. 4.16ECh. 4.4 - Prob. 4.17ECh. 4.4 - Prob. 4.18ECh. 4.5 - What are secondary data? Differentiate between...Ch. 4.5 - Prob. 4.20ECh. 4.5 - Prob. 4.21ECh. 4.5 - Prob. 4.22ECh. 4.5 - Prob. 4.23ECh. 4.5 - Prob. 4.24ECh. 4.6 - Prob. 4.32ECh. 4.6 - Differentiate between sampling error and...Ch. 4.6 - Prob. 4.34ECh. 4.6 - Prob. 4.35ECh. 4.6 - Prob. 4.36ECh. 4.6 - Prob. 4.37ECh. 4.7 - Attendees at an industrial trade show are given...Ch. 4.7 - Prob. 4.39ECh. 4.7 - Prob. 4.40ECh. 4.7 - Prob. 4.41ECh. 4.7 - Prob. 4.42ECh. 4.7 - For each of the following situations, would you...Ch. 4.7 - Prob. 4.44ECh. 4.7 - Prob. 4.45ECh. 4.7 - Prob. 4.46ECh. 4.7 - Prob. 4.47ECh. 4.7 - Prob. 4.48ECh. 4.7 - Prob. 4.49ECh. 4 - Prob. 4.50CECh. 4 - Prob. 4.51CECh. 4 - For each of the following report titles, indicate...Ch. 4 - Prob. 4.53CECh. 4 - Prob. 4.54CECh. 4 - A mail survey of junior executives is designed to...Ch. 4 - Prob. 4.56CECh. 4 - Prob. 4.57CECh. 4 - Prob. 4.58CECh. 4 - Prob. 4.59CECh. 4 - Prob. 4.60CECh. 4 - Prob. 4.61CECh. 4 - Prob. 4.62CECh. 4 - Prob. 4.64CECh. 4 - Prob. 4.67CECh. 4 - Prob. 4.68CECh. 4 - Prob. 4.69CECh. 4 - To test the effectiveness of a new type of plastic...Ch. 4 - Prob. 4.71CECh. 4 - A college of business has 20 faculty members in...Ch. 4 - Prob. 4.73CECh. 4 - Prob. 4.74CE
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