Test Bank for Essentials of Statistics for Business and Economics, 10th Edition by Jeffrey D. Camm
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Course
Introduction to Statistics
Institution
Introduction To Statistics
Test Bank for Essentials of Statistics for Business and Economics, 10e 10th Edition by Jeffrey D. Camm, James J. Cochran, Michael J. Fry. Complete Chapters (Chap 1 to 15) test bank are included with answers.
1. Data and Statistics.
2. Descriptive Statistics: Tabular and Graphical Displays.
3. ...
Indicate the answer choice that best completes the statement or answers the question.
1. An interviewer has made an error in recording the data. This type of error is known as a(n) _____ error.
a. experimental
b. data acquisition
c. non-experimental
d. conglomerate
ANSWER: b
2. The number observations in a complete data set having 15 elements and 5 variables is
a. 5.
b. 10.
c. 15.
d. 75.
ANSWER: c
3. The scale of measurement that has an inherent zero value defined is the _____ scale.
a. ratio
b. nominal
c. ordinal
d. interval
ANSWER: a
4. The numbers on football jerseys are an example of _____ data.
a. categorical
b. either categorical or quantitative
c. neither categorical nor quantitative
d. quantitative
ANSWER: a
5. Facts and figures that are collected, analyzed and summarized for presentation and interpretation are
a. v ariables.
b. e lements.
c. t ime series data.
d. data.
ANSWER: d
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Chapter 01 10e Camm
6. Which of the following is not an example of a firm that sells or leases business database services to clients?
a. Dun & Bradstreet
b. B loomberg
c. C ensus Bureau
d. Dow Jones & Co.
ANSWER: c
7. A characteristic of interest for the elements is called a
a. sample.
b. data set.
c. variable.
d. quality.
ANSWER: c
8. The data measured on ordinal scale exhibits all the properties of data measured on
a. ratio scale.
b. interval scale.
c. nominal scale.
d. nominal and interval scales.
ANSWER: c
9. The sample size
a. can be larger than the population size.
b. is always smaller than the population size.
c. can be larger or smaller than the population size.
d. is always equal to the size of the population.
ANSWER: b
10. Statistical studies in which researchers do not control variables of interest are _____ studies.
a. experimental
b. random variable
c. inferential
d. observational
ANSWER: d
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Chapter 01 10e Camm
11. Five hundred residents of a city with a population of 240,495 are polled to obtain information on voting intentions
in an upcoming city election. The five hundred residents in this study is an example of a(n)
a. census.
b. sample.
c. observation.
d. population.
ANSWER: b
12. In a questionnaire, respondents are asked to mark their gender as male or female. The scale of measurement for
gender is _____ scale.
a. ordinal
b. nominal
c. ratio
d. interval
ANSWER: b
13. A student’s dormitory room number is an example of
a. a quantitative variable.
b. either a quantitative or a categorical variable.
c. an exchange variable.
d. a categorical variable.
ANSWER: d
14. Since a sample is a subset of the population, the sample mean _____ the mean of the population.
a. is always smaller than
b. is always larger than
c. must be equal to
d. varies around
ANSWER: d
15. Statistical studies in which researchers control variables of interest are _____ studies.
a. experimental
b. random variable
c. inferential
d. observational
ANSWER: a
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Chapter 01 10e Camm
16. Data collected at the same, or approximately the same point in time are _____ data.
a. time series
b. approximate time series
c. cross-sectional
d. approximate
ANSWER: c
17. The collection of all elements of interest in a study is
a. the population.
b. the sample.
c. a survey.
d. a census.
ANSWER: a
18. The largest experimental statistical study ever conducted is believed to be for
a. C
holera.
b. P olio.
c. D iphtheria.
d. M alaria.
ANSWER: b
19. Which of the following variables uses the interval scale of measurement?
a. S
tandardized test score
b. T ime duration
c. S tudent ID number
d. V ehicle miles-per-gallon
ANSWER: a
20. How many scales of measurement exist?
a. 2
b. 4
c. 6
d. 8
ANSWER: b
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