Test Bank for Business Statistics: A Decision-Making Approach 10th Edition, by David Groebner |Chapter 1-20

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TEST ITEM FILE
LINDA DAWSON
University of Washington Tacoma




BUSINESS STATISTICS A
ST
DECISION -MAKING
APPROACH
TENTH EDITION
U
D

David F. Groebner
YL
Patrick W. Shannon
Phillip C. Fry
AB

ALL CHAPTERS ⬛⬛⬛



ALL ANSWERS ⬛⬛⬛

,Business Statistics, 10e (Groebner/Shannon/Fry)
Chapter 1 The Where, why, and How of Data Collection

1) Statistics is a discipline that involves tools and techniques used to describe data and draw conclusions.
Answer: TRUE
Diff: 1
Keywords: descriptive statistics Section: 1-1
What Is Business Statistics? Outcome: none

2) In this course, the term business statistics refers to the set of tools and techniques that are used to convert
information into meaningful data.
Answer: FALSE Diff: 1
Keywords: descriptive statistics and/or inferential statistics Section:
1-1 What Is Business Statistics?
Outcome: none
ST
3) Descriptive statistics allow a decision maker to reach a conclusion about a population based on a subset
from the population.
Answer: FALSE Diff: 2
Keywords: descriptive statistics and/or inferential statistics Section:
1-1 What Is Business Statistics?
U
Outcome: none

4) An accountant has recently prepared a report for a client that contains a variety of graphs and charts. In
doing so, she has used descriptive statistical methods.
D
Answer: TRUE Diff: 1
Keywords: descriptive statistics Section: 1-1
What Is Business Statistics? Outcome: none
YL
5) Descriptive statistical tools include graphs, charts, and numerical measures.
Answer: TRUE
Diff: 1
Keywords: descriptive statistics Section: 1-1
What Is Business Statistics? Outcome: none
AB
6) A histogram is an example of a numerical measure.
Answer: FALSE
Diff: 1
Keywords: descriptive statistics Section: 1-1
What Is Business Statistics? Outcome: none




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7) Companies frequently use charts and graphs in their regular communications with stockholders and
investors; this shows the use of descriptive statistics.
Answer: TRUE Diff: 1
Keywords: descriptive statistics Section: 1-1
What Is Business Statistics? Outcome: none

8) A manufacturing manager has developed a table that shows the average production volume each day for the
past three weeks. The average production level is an example of a numerical measure.
Answer: TRUE Diff: 1
Keywords: descriptive statistics Section: 1-1
What Is Business Statistics? Outcome: none

9) An accountant who recently examined 200 accounts from a company's total of 4,000 accounts in an effort to
estimate the percentage of all accounts that have incorrect journal entries is using descriptive statistical
analysis to reach the conclusion.
ST
Answer: FALSE Diff: 2
Keywords: descriptive statistics Section: 1-1
What Is Business Statistics? Outcome: none

10) The editor of a local newspaper is interested in determining the percentage of subscribers who read the
paper's editorials. The statistical technique that he would use is called estimation.
Answer: TRUE Diff: 2
U
Keywords: descriptive statistics Section: 1-1
What Is Business Statistics? Outcome: none
D
11) Hypothesis testing and estimation are two statistical tools that are used to draw inferences about a large
data set based on a subset of the data.
Answer: TRUE Diff: 1
Keywords: inferential statistics Section: 1-1
YL
What Is Business Statistics? Outcome: none

12) Another term for the arithmetic average is the mean.
Answer: TRUE
Diff: 1
Keywords: descriptive statistics, mean Section:
AB
1-1 What Is Business Statistics? Outcome: none

, 13) Statistical inference would be used as the primary statistical tool by a quality control manager who wishes
to estimate the average weight of her company's products.
Answer: TRUE Diff: 2
Keywords: inferential statistics Section: 1-1
What Is Business Statistics? Outcome: none

14) A light bulb manufacturer wants to advertise the average life of its light bulbs so it tests a subset of light
bulbs. This is an example of inferential statistics.
Answer: TRUE Diff: 2
Keywords: inferential statistics Section: 1-1
What Is Business Statistics? Outcome: none

15) A sales manager has five salespeople. The following are the number of units sold by the five salespeople
during the past week: {5, 13, 6, 2, 4}. Based on the data, the mean number of units sold was 6 units.
Answer: TRUE Diff: 2
ST
Keywords: descriptive statistics, mean Section:
1-1 What Is Business Statistics? Outcome: none

16) Some of the most common methods of collecting data include experiments, telephone surveys, mail
questionnaires, direct observations, and personal interviews.
Answer: TRUE Diff: 1
Keywords: data collection
U
Section: 1-2 Procedures for Collecting Data
Outcome: 1
D
17) An experiment is a process that generates data as its outcome.
Answer: TRUE
Diff: 1
Keywords: data collection
YL
Section: 1-2 Procedures for Collecting Data
Outcome: 1

18) Experimental design is a plan for performing an experiment where the effects of one or more factors on the
variable of interest are measured.
Answer: TRUE Diff: 2
AB
Keywords: data collection, experiments Section: 1-
2 Procedures for Collecting Data Outcome: 1




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