Deck 1: Defining and Collecting Data

Question 1

The chancellor of a major university was concerned about alcohol abuse on her campus and wanted to find out the proportion of students at her university who visited campus bars on the weekend before the final exam week.Her assistant took a random sample of 250 students.The answer on "whether you visited campus bars on the weekend before the final exam week" from students in the sample is an example of .

A)a categorical variable.
B)a discrete variable.
C)a continuous variable.
D)a table of random numbers.

Answer 1

a categorical variable.

Question 2

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "How much time do you use the Blu-ray player every week on the average?" are values from a

A)discrete numerical variable.
B)continuous numerical variable.
C)categorical variable.
D)table of random numbers.

Answer 2

continuous numerical variable.

Question 3

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "How would you rate the quality of your purchase experience with 1 = excellent,2 = good,3 = decent,4 = poor,5 = terrible?" are values from a

A)discrete numerical variable.
B)continuous numerical variable.
C)categorical variable.
D)table of random numbers.

Answer 3

categorical variable.

Question 4

Which of the following is a discrete quantitative (numerical)variable?

A)The Dow Jones Industrial average
B)The volume of water released from a dam
C)The distance you drove yesterday.
D)The number of employees of an insurance company

Question 5

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "What brand of Blu-ray player did you purchase?" are values from a

A)discrete numerical variable.
B)continuous numerical variable.
C)categorical variable.
D)table of random numbers.

Question 6

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "How much time do you use the Blu-ray player every week on the average?" result in

A)a nominal scale variable.
B)an ordinal scale variable.
C)an interval scale variable.
D)a ratio scale variable.

Question 7

The classification of student class designation (freshman,sophomore,junior,senior)is an example of

A)a categorical variable.
B)a discrete variable.
C)a continuous variable.
D)a table of random numbers.

Question 8

The classification of student major (accounting,economics,management,marketing,other)is an example of

A)a categorical variable.
B)a discrete variable.
C)a continuous variable.
D)a table of random numbers.

Question 9

Researchers are concerned that the weight of the average American school child is increasing implying,among other things,that children's clothing should be manufactured and marketed in larger sizes.If X is the weight of school children sampled in a nationwide study without rounding,then X is an example of

A)a categorical variable.
B)a discrete variable.
C)a continuous variable.
D)a table of random numbers.

Question 10

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "In which year were you born?" are values from a

A)discrete numerical variable.
B)continuous numerical variable.
C)categorical variable.
D)table of random numbers.

Question 11

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "Out of a 100-point score with 100 being the highest and 0 being the lowest,what is your satisfaction level on the videocassette recorder that you purchased?" are values from a

A)discrete numerical variable.
B)continuous numerical variable.
C)categorical variable.
D)table of random numbers.

Question 12

To monitor campus security,the campus police office is taking a survey of the number of students in a parking lot each 30 minutes of a 24-hour period with the goal of determining when patrols of the lot would serve the most students.If X is the number of students in the lot each period,then X is an example of

A)a categorical variable.
B)a discrete variable.
C)a continuous variable.
D)a statistic.

Question 13

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "Are you happy,indifferent,or unhappy with the performance per dollar spent on the Blu-ray player?" result in

A)a nominal scale variable.
B)an ordinal scale variable.
C)an interval scale variable.
D)a ratio scale variable.

Question 14

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "How many Blu-ray players made by other manufacturers have you used? "results in

A)a nominal scale variable.
B)an ordinal scale variable.
C)an interval scale variable.
D)a ratio scale variable.

Question 15

Which of the following is a continuous quantitative (numerical)variable?

A)The color of a student's eyes
B)The number of employees of an insurance company
C)The amount of milk in a 2-liter carton.
D)The number of gallons of milk sold at the local grocery store yesterday

Question 16

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "How many Blu-ray players made by other manufacturers have you used?" are values from a

A)discrete variable.
B)continuous variable.
C)categorical variable.
D)table of random numbers.

Question 17

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "How many people are there in your household?" are values from a

A)discrete numerical variable.
B)continuous numerical variable.
C)categorical variable.
D)table of random numbers.

Question 18

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "Are you happy,indifferent,or unhappy with the performance per dollar spent on the Blu-ray player?" are values from a

A)discrete numerical variable.
B)continuous numerical variable.
C)categorical variable.
D)table of random numbers.

Question 19

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "What is your annual income rounded to the nearest thousands?" result in

A)a nominal scale variable.
B)an ordinal scale variable.
C)an interval scale variable.
D)a ratio scale variable.

Question 20

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "What is your annual income rounded to the nearest thousands?" are values from a

A)discrete numerical variable.
B)continuous numerical variable.
C)categorical variable.
D)table of random numbers.

Question 21

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance.The number of tickets a person has received in the last 3 years is an example of a numerical variable.

Question 22

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance.How long a person has been a licensed driver is an example of a numerical variable.

Question 23

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "What brand of Blu-ray player did you purchase?" result in

A)a nominal scale variable.
B)an ordinal scale variable.
C)an interval scale variable.
D)a ratio scale variable.

Question 24

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "How many people are there in your household?" result in

A)a nominal scale variable.
B)an ordinal scale variable.
C)an interval scale variable.
D)a ratio scale variable.

Question 25

Faculty rank (professor to lecturer)is an example of discrete numerical data.

Question 26

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "How would you rate the quality of your purchase experience with 1 = excellent,2 = good,3 = decent,4 = poor,5 = terrible?" result in

A)a nominal scale variable.
B)an ordinal scale variable.
C)an interval scale variable.
D)a ratio scale variable.

Question 27

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "Out of a 100-point score with 100 being the highest and 0 being the lowest,what is your satisfaction level with the Blu-ray player that you purchased results in:

A)a nominal scale variable.
B)an ordinal scale variable.
C)an interval scale variable.
D)a ratio scale variable.

Question 28

The possible responses to the question "How many times in the past three months have you visited a city park?" are values from a discrete variable.

Question 29

A continuous variable may take on any value within its relevant range even though the measurement device may not be precise enough to record it.

Question 30

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance.The number of claims a person has made in the last 3 years is an example of a numerical variable.

Question 31

SCENARIO 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a Blu-ray player made by the company over the past 12 months are satisfied with their products.
Referring to Scenario 1-1,the possible responses to the question "What is your age at last birthday ?" results in:

A)a nominal scale variable.
B)an ordinal scale variable.
C)an interval scale variable.
D)a ratio scale variable.

Question 32

The possible responses to the question "How long have you been living at your current residence?" are values from a continuous variable.

Question 33

Student grades (A to F)are an example of continuous numerical data.

Question 34

The amount of coffee consumed by an individual in a day is an example of a discrete numerical variable.

Question 35

The answer to the question "What is your sleeping bag temperature rating?" is an example of a ratio scaled variable.

Question 36

The answer to the question "How many hours on average do you spend watching TV every week?" is an example of a ratio scaled variable.

Question 37

The answer to the question "How do you rate the quality of your business statistics course" is an example of an ordinal scaled variable.

Question 38

The answer to the question "What is your favorite color?" is an example of an ordinal scaled variable.

Question 39

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance.The distance a person drives in a year is an example of a variable.

Question 40

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance.A person's age is an example of a numerical variable.

Question 41

Most colleges admit students based on their achievements in several different areas.The total SAT score achieved by a student is an example of a numerical variable.

Question 42

The Dean of Students conducted a survey on campus.SAT score in mathematics is an example of a numerical variable.

Question 43

Most colleges admit students based on their achievements in several different areas.Whether a student has taken any advanced placement courses is an example of a variable.

Question 44

A personal computer user survey was conducted.The number of years using a personal computer is an example of a numerical variable.

Question 45

The Dean of Students conducted a survey on campus.Number of clubs,groups,teams,and organizations affiliated with on campus is an example of a numerical variable.

Question 46

A personal computer user survey was conducted.The number of computer magazine subscriptions is an example of a numerical variable.

Question 47

Most colleges admit students based on their achievements in several different areas.The grade obtained in senior level English.(A,B,C,D,or F)is an example of a variable.

Question 48

The Dean of Students conducted a survey on campus.The gender of the student is an example of a variable.

Question 49

In purchasing an automobile,there are several variables to consider.The classification of the car as a subcompact,compact,standard,or luxury size is an example of a variable.

Question 50

The Dean of Students conducted a survey on campus.Class designation (Freshman,Sophomore,Junior,Senior)is an example of a variable.

Question 51

A personal computer user survey was conducted.Primary word processing package used is an example of a variable

Question 52

A personal computer user survey was conducted.Hours of personal computer use per week is an example of a numerical variable

Question 53

In purchasing an automobile,there are several variables to consider.The color of the car is an example of a variable.

Question 54

The Dean of Students conducted a survey on campus.Number of credits currently enrolled for is an example of a numerical variable.

Question 55

In purchasing an automobile,there are several variables to consider.The body style of the car (sedan,coupe,wagon,etc. )is an example of a variable.

Question 56

The Dean of Students conducted a survey on campus.Grade point average (GPA)is an example of a numerical variable.

Question 57

The Dean of Students conducted a survey on campus.Major area of study is an example of a
variable.

Question 58

A personal computer user survey was conducted.Number of personal computers owned is an
example of a numerical variable.

Question 59

The brand of TV one owns is an example of an ordinal scaled variable.

Question 60

A personal computer user survey was conducted.Computer brand primarily used is an example
of a variable.

Question 61

The quality ("terrible","poor","fair","acceptable","very good" and "excellent")of a day care center is an example of a numerical variable.

Question 62

The amount of time a student spent studying for an exam is an example of a continuous variable.

Question 63

The amount of time a student spent studying for an exam will be measured on a ratio scale.

Question 64

The number of defective apples in a single box is an example of a continuous variable.

Question 65

The number of defective apples in a single box will be measured on an interval scale.

Question 66

SCENARIO 1-2
A Wall Street Journal poll asked 2,150 adults in the U.S.a series of questions to find out their view on the U.S.economy.
Referring to Scenario 1-2,the population of interest is

A)all the males living in the U.S.when the polled was taken.
B)all the females living in the U.S.when the polled was taken.
C)all the adults living in the U.S.when the poll was taken.
D)all the people living in the U.S.when the poll was taken.

Question 67

The level of satisfaction ("Very unsatisfied","Fairly unsatisfied","Fairly satisfied",and "Very satisfied")in a class is an example of a categorical variable.

Question 68

The grade level (K-12)of a student is an example of a numerical variable.

Question 69

The brand of TV one owns is an example of a numerical variable.

Question 70

The quality ("terrible","poor","fair","acceptable","very good" and "excellent")of a day care center is an example of a nominal scaled variable.

Question 71

The amount of alcohol consumed by a person per week will be measured on an interval scale.

Question 72

The number of calories contained in a 12-ounce package of cheese will be measured on a ratio scale.

Question 73

Whether the university is private,or public is an example of a nominal scaled variable.

Question 74

The grade level (K-12)of a student is an example of a nominal scaled variable.

Question 75

Marital status is an example of a numerical variable.

Question 76

The level of satisfaction ("Very unsatisfied","Fairly unsatisfied","Fairly satisfied",and "Very satisfied")in a class is an example of an ordinal scaled variable.

Question 77

The amount of alcohol consumed by a person per week is an example of a continuous variable.

Question 78

Whether the university is private,or public is an example of a categorical variable.

Question 79

The number of calories contained in a 12-ounce package of cheese is an example of a discrete variable.

Question 80

Marital status is an example of an ordinal scaled variable.