TEST BANK
Introductory Statistics: Exploring the World Through Data
Robert Gould, Rebecca Wong, Colleen Ryan
────────────────────────────────────────────────────
ST
3rd Edition
UV
IA
_M
GE
TEST BANK
EK
??
, TABLE OF CONTENTS
Test Bank: Introductory Statistics: Exploring the World Through Data, 3rd Edition
By Robert Gould, Rebecca Wong, and Colleen Ryan
CHAPTER 1 Introduction to Data
ST
CHAPTER 2 Picturing Variation with Graphs
CHAPTER 3 Numerical Summaries of Center and Variation
UV
CHAPTER 4 Regression Analysis: Exploring Associations between Variables
CHAPTER 5 Modeling Variation with Probability
CHAPTER 6 Modeling Random Events: The Normal and Binomial Models
IA
CHAPTER 7 Survey Sampling and Inference
CHAPTER 8 Hypothesis Testing for Population Proportions
CHAPTER 9 Inferring Population Means
_M
CHAPTER 10 Associations between Categorical Variables
CHAPTER 11 Multiple Comparisons and Analysis of Variance
CHAPTER 12 Experimental Design: Controlling Variation
GE
CHAPTER 13 Inference without Normality
CHAPTER 14 Inference for Regression
EK
??
,Ch. 1 Introduction to Data
1.1 What Are Data?
1 Understand Concepts Regarding Data
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Answer the question.
1) Data can be defined as numbers in context. Suppose you are given the following set of numbers:
1.73, 1.83, 1.57, 1.88, 1.70, 1.65
ST
What additional information would allow you to define these numbers as data?
A) Units of measurement. This could represent the heights of six 5-year-olds, in meters.
B) Units of measurement. This could represent the heights of six 20 -year-olds, in meters.
C) We need to know where these numbers were collected.
D) We need to know who collected these numbers.
UV
Answer: B
2) Data can be defined as numbers in context. Suppose you are given the following set of numbers:
18, 22, 22, 20, 19, 21
What additional information would allow you to define these numbers as data?
A) We need to know where these numbers were collected.
IA
B) We need to know who collected these numbers.
C) Units of measurement. This could represent the ages of six high school students.
D) Units of measurement. This could represent the ages of six college students.
Answer: D
_M
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
3) Give an example of how data could be collected about you on a daily basis.
Answer: Answers will vary. Examples might include: Facebook postings, Twitter tweets, Instagram photos,
emails sent/received, credit/debit card swipes, GPS, text messaging, etc.
1.2 Classifying and Storing Data
GE
1 Understand the Fundamentals of Statistics
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
EK
1) A statistics student collected data from other students in her class who ride a bike to school. The following table
shows data about their bikes:
Color Series Number Weight (lbs) Road Bike Average Speed (mph)
Black A120 32 0 16
??
Blue B640 22 1 24
Green C300 26 0 14
Black D90 16 1 23
How many variables are there?
A) 5 B) 4 C) 20 D) 7
Answer: A
, 2) A statistics student collected data from other students in her class who ride a bike to school. The following table
shows data about their bikes:
Color Series Number Weight (lbs) Road Bike Average Speed (mph)
Black A120 32 0 16
Blue B640 21 1 24
Green C300 29 0 14
Black D90 14 1 23
Observations were made on how many bikes?
ST
A) 4 B) 5 C) 20 D) 7
Answer: A
3) In a recent school poll, the administrators asked if students were satisfied with the schoolʹs course offerings.
What is the population of interest here?
UV
A) All students who are satisfied with the course offerings.
B) All students who are not satisfied with the course offerings.
C) All students who attend the school.
D) All students who participated in the poll.
Answer: C
IA
4) In a recent high school poll, the principal asked if students were satisfied with the amount of after -school
activities offered. What is the population of interest here?
A) All students who attend the school.
B) All students who participated in the poll.
C) All students who are satisfied with the amount of after-school activities that are offered.
_M
D) All students who are not satisfied with the amount of after-school activities that are offered.
Answer: A
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
5) In a recent survey at UCLA, some incoming freshmen students were asked if they planned to take more than
one math class before they graduated. What is the population of interest here and what is the sample?
GE
Answer: The population is the entire freshman class at UCLA. The sample includes the particular freshmen who
participated in the survey.
2 Distinguish Between Numerical and Categorical Variables
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
EK
Solve the problem.
1) The average gas mileage of the top selling mini-vans for each U. S. car manufacturer is an example of what
type of variable?
A) Numerical variable B) Categorical variable C) Neither
??
Answer: A
2) A state senatorʹs comments about the dangers of global warming are an example of what type of variable?
A) Numerical variable B) Categorical variable C) Neither
Answer: C
3) Marital status of each member of a randomly selected group of adults is an example of what type of variable?
A) Numerical variable B) Categorical variable C) Neither
Answer: B
Introductory Statistics: Exploring the World Through Data
Robert Gould, Rebecca Wong, Colleen Ryan
────────────────────────────────────────────────────
ST
3rd Edition
UV
IA
_M
GE
TEST BANK
EK
??
, TABLE OF CONTENTS
Test Bank: Introductory Statistics: Exploring the World Through Data, 3rd Edition
By Robert Gould, Rebecca Wong, and Colleen Ryan
CHAPTER 1 Introduction to Data
ST
CHAPTER 2 Picturing Variation with Graphs
CHAPTER 3 Numerical Summaries of Center and Variation
UV
CHAPTER 4 Regression Analysis: Exploring Associations between Variables
CHAPTER 5 Modeling Variation with Probability
CHAPTER 6 Modeling Random Events: The Normal and Binomial Models
IA
CHAPTER 7 Survey Sampling and Inference
CHAPTER 8 Hypothesis Testing for Population Proportions
CHAPTER 9 Inferring Population Means
_M
CHAPTER 10 Associations between Categorical Variables
CHAPTER 11 Multiple Comparisons and Analysis of Variance
CHAPTER 12 Experimental Design: Controlling Variation
GE
CHAPTER 13 Inference without Normality
CHAPTER 14 Inference for Regression
EK
??
,Ch. 1 Introduction to Data
1.1 What Are Data?
1 Understand Concepts Regarding Data
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Answer the question.
1) Data can be defined as numbers in context. Suppose you are given the following set of numbers:
1.73, 1.83, 1.57, 1.88, 1.70, 1.65
ST
What additional information would allow you to define these numbers as data?
A) Units of measurement. This could represent the heights of six 5-year-olds, in meters.
B) Units of measurement. This could represent the heights of six 20 -year-olds, in meters.
C) We need to know where these numbers were collected.
D) We need to know who collected these numbers.
UV
Answer: B
2) Data can be defined as numbers in context. Suppose you are given the following set of numbers:
18, 22, 22, 20, 19, 21
What additional information would allow you to define these numbers as data?
A) We need to know where these numbers were collected.
IA
B) We need to know who collected these numbers.
C) Units of measurement. This could represent the ages of six high school students.
D) Units of measurement. This could represent the ages of six college students.
Answer: D
_M
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
3) Give an example of how data could be collected about you on a daily basis.
Answer: Answers will vary. Examples might include: Facebook postings, Twitter tweets, Instagram photos,
emails sent/received, credit/debit card swipes, GPS, text messaging, etc.
1.2 Classifying and Storing Data
GE
1 Understand the Fundamentals of Statistics
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
EK
1) A statistics student collected data from other students in her class who ride a bike to school. The following table
shows data about their bikes:
Color Series Number Weight (lbs) Road Bike Average Speed (mph)
Black A120 32 0 16
??
Blue B640 22 1 24
Green C300 26 0 14
Black D90 16 1 23
How many variables are there?
A) 5 B) 4 C) 20 D) 7
Answer: A
, 2) A statistics student collected data from other students in her class who ride a bike to school. The following table
shows data about their bikes:
Color Series Number Weight (lbs) Road Bike Average Speed (mph)
Black A120 32 0 16
Blue B640 21 1 24
Green C300 29 0 14
Black D90 14 1 23
Observations were made on how many bikes?
ST
A) 4 B) 5 C) 20 D) 7
Answer: A
3) In a recent school poll, the administrators asked if students were satisfied with the schoolʹs course offerings.
What is the population of interest here?
UV
A) All students who are satisfied with the course offerings.
B) All students who are not satisfied with the course offerings.
C) All students who attend the school.
D) All students who participated in the poll.
Answer: C
IA
4) In a recent high school poll, the principal asked if students were satisfied with the amount of after -school
activities offered. What is the population of interest here?
A) All students who attend the school.
B) All students who participated in the poll.
C) All students who are satisfied with the amount of after-school activities that are offered.
_M
D) All students who are not satisfied with the amount of after-school activities that are offered.
Answer: A
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
5) In a recent survey at UCLA, some incoming freshmen students were asked if they planned to take more than
one math class before they graduated. What is the population of interest here and what is the sample?
GE
Answer: The population is the entire freshman class at UCLA. The sample includes the particular freshmen who
participated in the survey.
2 Distinguish Between Numerical and Categorical Variables
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
EK
Solve the problem.
1) The average gas mileage of the top selling mini-vans for each U. S. car manufacturer is an example of what
type of variable?
A) Numerical variable B) Categorical variable C) Neither
??
Answer: A
2) A state senatorʹs comments about the dangers of global warming are an example of what type of variable?
A) Numerical variable B) Categorical variable C) Neither
Answer: C
3) Marital status of each member of a randomly selected group of adults is an example of what type of variable?
A) Numerical variable B) Categorical variable C) Neither
Answer: B
