Question 1

Which of the following best describes the term "data":

Accepted Answer

A)  facts or figures that are subject to summarization, analysis, and presentation
B)  a collection of data with some common characteristic
C)  the entities on which data are collected
D)  a particular characteristic of interest for the elements
E)  the set of measurements collected for a particular elementF) A) and B)
G) A) and C)

Question 2

Statistics is the art and science of collecting, analyzing, interpreting, and presenting data in an effort to transform that data into useful information.

Accepted Answer

A) True 
 B)False  True

Question 3

Distinguish between time series data and cross-sectional data.

Accepted Answer

A)  time series data and cross-sectional are essentially the same.
B)  time series data are collected at or represent the same point in time.
C)  cross-sectional data are collected over time or represent values in two or more time periods.
D)  time series data are collected over time or represent values in two or more time periods.
E)  a and cF) A) and E)
G) B) and D)

Question 4

Data collected at, or representing, the same point in time are:

Accepted Answer

A)  cross-sectional data
B)  time cross-sectional data
C)  time series data
D)  time controlled data
E)  none of the aboveF) None of the above
G) A) and B)

Question 5

Numeric data are always quantitative.

Accepted Answer

A) True 
 B)False

Question 6

Time series data are data collected at, or representing, the same point in time.

Accepted Answer

A) True 
 B)False

Question 7

Income is an example of

Accepted Answer

A)  qualitative data
B)  either qualitative or quantitative data
C)  dollar data
D)  quantitative data
E)  none of the aboveF) A) and B)
G) D) and E)

Question 8

Which of the following best describes the role of probability theory:

Accepted Answer

A)  it is the link between descriptive statistics and inferential statistics
B)  it is the link between statistics and data
C)  it explains the role of chance in everyday events
D)  it is used to describe various distributions of data
E)  all of the aboveF) A) and B)
G) A) and C) A

Question 9

Ratio data has all the properties of interval data, plus a natural zero point, allowing for legitimate ratio comparisons.

Accepted Answer

A) True 
 B)False  True

Question 10

What is the order of the four activities related to data involved in statistics?

Accepted Answer

A)  collecting, analyzing, interpreting, and presenting
B)  collecting, interpreting, analyzing, and presenting
C)  analyzing, collecting, presenting, and interpreting
D)  analyzing, presenting, interpreting, and collecting
E)  interpreting, collecting, analyzing, and presentingF) C) and E)
G) B) and C)

Question 11

Descriptive statistics focuses on summarizing data while inferential statistics deals with the selection and use of sample data to produce information about the larger population from which the sample was selected.

Accepted Answer

A) True 
 B)False

Question 12

For ease of data entry into a university database, 1 denotes that the student is an undergraduate and 2 indicates that the student is a graduate student.In this case data are:

Accepted Answer

A)  qualitative
B)  quantitative
C)  either qualitative or quantitative
D)  neither qualitative nor quantitative
E)  time seriesF) B) and D)
G) A) and B)

Question 13

Descriptive statistics focuses on summarizing and presenting data, and includes tables and graphs as well as numerical statistics.

Accepted Answer

A) True 
 B)False

Question 14

Statistics is the art and science of collecting, analyzing, and interpreting data.

Accepted Answer

A) True 
 B)False

Question 15

Data collected over several time periods are:

Accepted Answer

A)  time series data
B)  time controlled data
C)  cross-sectional data
D)  timed cross-sectional data
E)  none of the aboveF) B) and D)
G) None of the above

Question 16

Which variables below are qualitative rather than quantitative?

Accepted Answer

A)  time to complete a job (hours) 
B)  number of friends
C)  altitude (feet) 
D)  zip code
E)  hourly wage ($) F) B) and E)
G) D) and E)

Question 17

The primary goal of statistics is to select data to support a particular position.

Accepted Answer

A) True 
 B)False

Question 18

Data measured on an interval scale cannot be rank-ordered.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following is that branch of statistics that focuses on summarizing and presenting data:

Accepted Answer

A)  inferential statistics
B)  descriptive statistics
C)  statistical inference
D)  report generation
E)  none of the aboveF) C) and D)
G) B) and E)

Question 20

Which variable(s)  below are qualitative rather than quantitative?

Accepted Answer

A)  telephone number
B)  PIN number
C)  speed (mph) 
D)  both a and b
E)  both a and cF) C) and E)
G) A) and B)

Exam 1: An Introduction to Statistics

Which of the following best describes the term "data":

Correct AnswerverifiedShow Answer

Statistics is the art and science of collecting, analyzing, interpreting, and presenting data in an effort to transform that data into useful information.

Correct AnswerverifiedTrue

Distinguish between time series data and cross-sectional data.

Correct AnswerverifiedShow Answer

Data collected at, or representing, the same point in time are:

Correct AnswerverifiedShow Answer

Numeric data are always quantitative.

Correct AnswerverifiedShow Answer

Time series data are data collected at, or representing, the same point in time.

Correct AnswerverifiedShow Answer

Income is an example of

Correct AnswerverifiedShow Answer

Which of the following best describes the role of probability theory:

Correct AnswerverifiedA

Ratio data has all the properties of interval data, plus a natural zero point, allowing for legitimate ratio comparisons.

Correct AnswerverifiedTrue

What is the order of the four activities related to data involved in statistics?

Correct AnswerverifiedShow Answer

Descriptive statistics focuses on summarizing data while inferential statistics deals with the selection and use of sample data to produce information about the larger population from which the sample was selected.

Correct AnswerverifiedShow Answer

For ease of data entry into a university database, 1 denotes that the student is an undergraduate and 2 indicates that the student is a graduate student.In this case data are:

Correct AnswerverifiedShow Answer

Descriptive statistics focuses on summarizing and presenting data, and includes tables and graphs as well as numerical statistics.

Correct AnswerverifiedShow Answer

Statistics is the art and science of collecting, analyzing, and interpreting data.

Correct AnswerverifiedShow Answer

Data collected over several time periods are:

Correct AnswerverifiedShow Answer

Which variables below are qualitative rather than quantitative?

Correct AnswerverifiedShow Answer

The primary goal of statistics is to select data to support a particular position.

Correct AnswerverifiedShow Answer

Data measured on an interval scale cannot be rank-ordered.

Correct AnswerverifiedShow Answer

Which of the following is that branch of statistics that focuses on summarizing and presenting data:

Correct AnswerverifiedShow Answer

Which variable(s) below are qualitative rather than quantitative?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
True

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified
True

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified