QNT 275 WEEK 2 QUIZ
A stem-and-leaf diagram is constructed by
separating each value of a data set into two parts. What are these parts?
Stem
consisting of the last digit and leaf consisting of the leftmost digits
Stem
consisting of the second digit and leaf consisting of the last digit
Stem
consisting of the leftmost digits and leaf consisting of the second digit
Stem
consisting of the leftmost digits and leaf consisting of the last digit
ABC Plumbing wants to understand its
customers’ perceptions of the quality of the company’s plumbing service calls.
They plan to survey a sample of its customer base. What will ABC need to do to
ensure that their data is valid and reliable?
The
survey must include items that ask customers to rate the appearance of the
plumbing store, the survey must include all customers, and the survey method
must include setting up a table outside the local dollar store.
The
survey must include items that ask customers about their plumbing experiences,
the survey sample must include the first 15 customers off the customer
database, and the survey method must be repeatable.
The
survey must include items that ask customers to rate the quality of plumbing
service calls, the survey sample must represent all parts of the customer
population, and the survey method must be repeatable.
The
survey must include items that ask customers to rate the friendliness of the
receptionist, the survey must include all customers from the north side of the
city, and the survey method must appeal to all respondents.
Which of the following represents a population
and a sample from that population?
Freshmen
at St. Joseph’s University and basketball players at St. Joseph’s University
Fans
at a concert who purchase t-shirts and fans at a concert who purchase soda
Teachers
in a high school and members of the parent teacher group
Residents
of Albany, New York, and registered voters in Albany, New York
A recent survey of 200 small firms (annual
revenue less than $10 million) asked whether an increase in the minimum wage
would cause the firm to decrease capital spending. Possible responses to the
survey question were: “Yes,” “No,” or “Don’t Know.” These data
are best classified as ____________.
Nominal
Scale
Ratio
Scale
Interval
Scale
Ordinal
Scale
Which of the following variables is
quantitative?
Marital
Status
Temperature
Religious
Affiliation
Gender
A population consists of _________________.
a
subject of interest in a statistical problem
all
items of interest in a statistical problem
all
items of interest in a sample
a
subject of interest in a sample
Which of the following variables is
qualitative?
Weight
Gender
Temperature
Height
QNT 275 WEEK 2 QUIZ
The accompanying chart shows the numbers of
books written by each author in a collection of cookbooks. What type of chart
is this?
Bar
chart for qualitative data
Frequency
histogram for qualitative data
Frequency
histogram for quantitative data
Bar
chart for quantitative data
In order to summarize qualitative data a
useful tool is a __________.
Histogram
Stem-and-Leaf
Diagram
Line
Graph
Frequency
Distribution
QNT 275 WEEK 2 QUIZ
A stem-and-leaf diagram is constructed by
separating each value of a data set into two parts. What are these parts?
Stem
consisting of the last digit and leaf consisting of the leftmost digits
Stem
consisting of the second digit and leaf consisting of the last digit
Stem
consisting of the leftmost digits and leaf consisting of the second digit
Stem
consisting of the leftmost digits and leaf consisting of the last digit
ABC Plumbing wants to understand its
customers’ perceptions of the quality of the company’s plumbing service calls.
They plan to survey a sample of its customer base. What will ABC need to do to
ensure that their data is valid and reliable?
The
survey must include items that ask customers to rate the appearance of the
plumbing store, the survey must include all customers, and the survey method
must include setting up a table outside the local dollar store.
The
survey must include items that ask customers about their plumbing experiences,
the survey sample must include the first 15 customers off the customer database,
and the survey method must be repeatable.
The
survey must include items that ask customers to rate the quality of plumbing
service calls, the survey sample must represent all parts of the customer
population, and the survey method must be repeatable.
The
survey must include items that ask customers to rate the friendliness of the
receptionist, the survey must include all customers from the north side of the
city, and the survey method must appeal to all respondents.
QNT 275 WEEK 2 QUIZ
Which of the following represents a population
and a sample from that population?
Freshmen
at St. Joseph’s University and basketball players at St. Joseph’s University
Fans
at a concert who purchase t-shirts and fans at a concert who purchase soda
Teachers
in a high school and members of the parent teacher group
Residents
of Albany, New York, and registered voters in Albany, New York
A recent survey of 200 small firms (annual
revenue less than $10 million) asked whether an increase in the minimum wage
would cause the firm to decrease capital spending. Possible responses to the
survey question were: “Yes,” “No,” or “Don’t Know.” These data
are best classified as ____________.
Nominal
Scale
Ratio
Scale
Interval
Scale
Ordinal
Scale
Which of the following variables is quantitative?
Marital
Status
Temperature
Religious
Affiliation
Gender
QNT 275 WEEK 2 QUIZ
A population consists of _________________.
a
subject of interest in a statistical problem
all
items of interest in a statistical problem
all
items of interest in a sample
a
subject of interest in a sample
Which of the following variables is
qualitative?
Weight
Gender
Temperature
Height
The accompanying chart shows the numbers of
books written by each author in a collection of cookbooks. What type of chart
is this?
Bar
chart for qualitative data
Frequency
histogram for qualitative data
Frequency histogram for quantitative
data
Bar chart for quantitative data
In order to summarize qualitative data a
useful tool is a __________.
Histogram
Stem-and-Leaf
Diagram
Line
Graph
Frequency
Distribution
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