Question 1

True or False: Sampling error can be reduced by taking larger sample sizes.

Accepted Answer

A) True 
 B)False  True

Question 2

Which of the following yields a systematic sample?

Accepted Answer

A)  All students in a class are divided into groups of 15.One student is randomly chosen from the 1st group, the remaining observations are every 15th student thereafter. 
B)  The best 15 students, according to the opinion of the instructor, in a class are selected. 
C)  All students in a class are grouped according to their gender.A random sample of 8 is selected from the males and a separate random sample of 7 is drawn from the females. 
D)  A random sample of 15 students is selected from a class without replacement. 
A)  All students in a class are divided into groups of 15.One student is randomly chosen from the 1st group, the remaining observations are every 15th student thereafter. 
B)  The best 15 students, according to the opinion of the instructor, in a class are selected. 
C)  All students in a class are grouped according to their gender.A random sample of 8 is selected from the males and a separate random sample of 7 is drawn from the females. 
D)  A random sample of 15 students is selected from a class without replacement. A

Question 3

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

Accepted Answer

categorical

Question 4

True or False: Measurement error can become an ethical issue when an interviewer purposely
guides the responses in a particular direction.

Accepted Answer

A) True 
 B)False

Question 5

SCENARIO 1-3
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 1-3, the manager decides to ask a sample of customers, who have bought
A Blu-ray player made by the company and filed a complaint over the past year, to fill in a survey
About whether they are satisfied with the product.This method will most likely suffer from

Accepted Answer

A)  nonresponse error. 
B)  measurement error. 
C)  coverage error. 
D)  non-probability sampling. 
A)  nonresponse error. 
B)  measurement error. 
C)  coverage error. 
D)  non-probability sampling.

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

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
Portion of students in the sample who visited campus bars on the weekend before the final exam
Week is an example of __________.

Accepted Answer

A)  a summary table. 
B)  a categorical variable. 
C)  a parameter. 
D)  a statistic 
A)  a summary table. 
B)  a categorical variable. 
C)  a parameter. 
D)  a statistic

Question 9

Marital status is an example of a numerical variable.

Accepted Answer

A) True 
 B)False

Question 10

A sample of 300 subscribers to a particular magazine is selected from a population frame of
9,000 subscribers.If, upon examining the data, it is determined that no subscriber had been
Selected in the sample more than once,

Accepted Answer

A)  the sample could not have been random. 
B)  the sample may have been selected without replacement or with replacement. 
C)  the sample had to have been selected with replacement. 
D)  the sample had to have been selected without replacement. 
A)  the sample could not have been random. 
B)  the sample may have been selected without replacement or with replacement. 
C)  the sample had to have been selected with replacement. 
D)  the sample had to have been selected without replacement.

Question 11

A study is under way in Yosemite National Forest to determine the adult height of American
Pine trees.Specifically, the study is attempting to determine what factors aid a tree in reaching
Heights greater than 60 feet tall.It is estimated that the forest contains 25,000 adult American
Pines.The study involves collecting heights from 250 randomly selected adult American pine
Trees and analyzing the results.Identify the population from which the study was sampled.

Accepted Answer

A)  The 250 randomly selected adult American pine trees. 
B)  The 25,000 adult American pine trees in the forest. 
C)  All the adult American pine trees taller than 60 feet. 
D)  All American pine trees, of any age, in the forest. 
A)  The 250 randomly selected adult American pine trees. 
B)  The 25,000 adult American pine trees in the forest. 
C)  All the adult American pine trees taller than 60 feet. 
D)  All American pine trees, of any age, in the forest.

Question 12

Which of the following is most likely a population as opposed to a sample?

Accepted Answer

A)  respondents to a newspaper survey. 
B)  the first 5 students completing an assignment. 
C)  every third person to arrive at the bank. 
D)  registered voters in a county. 
A)  respondents to a newspaper survey. 
B)  the first 5 students completing an assignment. 
C)  every third person to arrive at the bank. 
D)  registered voters in a county.

Question 13

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.

Accepted Answer

The answer of An insurance company evaluates many numerical variables...

Question 14

A statistics student found a reference in the campus library that contained the median family
Incomes for all 50 states.She would report her data as being collected using

Accepted Answer

A)  a designed experiment. 
B)  observational data. 
C)  a random sample. 
D)  a published source. 
A)  a designed experiment. 
B)  observational data. 
C)  a random sample. 
D)  a published source.

Question 15

The Quality Assurance Department of a large urban hospital is attempting to monitor and
evaluate patient satisfaction with hospital services.Prior to discharge, a random sample of
patients is asked to fill out a questionnaire to rate such services as medical care, nursing, therapy,
laboratory, food, and cleaning.The Quality Assurance Department prepares weekly reports that
are presented at the Board of Directors meetings and extraordinary/atypical ratings are easy to
flag.Values computed from the sample results each week are called _______.

Accepted Answer

The answer of The Quality Assurance Department of a large...

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

Referring to Scenario 1-2, the possible responses to the question "On the scale of 1 to 100 with 1
Being extremely anxious and 100 being totally not anxious, rate your level of anxiety in this U.S.
Economy" results in

Accepted Answer

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

Question 18

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

Accepted Answer

The answer of Most colleges admit students based on their...

Question 19

True or False: The question: "How much did you earn last year rounded to the nearest hundreds
of dollars?" will most likely result in measurement error.

Accepted Answer

A) True 
 B)False

Question 20

A population frame for a survey contains a listing of 72,345 names.Using a table of random
Numbers, how many digits will the code numbers for each member of your population contain?

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  6 
A)  3 
B)  4 
C)  5 
D)  6

True or False: Sampling error can be reduced by taking larger sample sizes.

Which of the following yields a systematic sample?

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

True or False: Measurement error can become an ethical issue when an interviewer purposely guides the responses in a particular direction.

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

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

Marital status is an example of a numerical variable.

A sample of 300 subscribers to a particular magazine is selected from a population frame of 9,000 subscribers.If, upon examining the data, it is determined that no subscriber had been Selected in the sample more than once,

Which of the following is most likely a population as opposed to a sample?

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.

A statistics student found a reference in the campus library that contained the median family Incomes for all 50 states.She would report her data as being collected using

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

Referring to Scenario 1-2, the possible responses to the question "On the scale of 1 to 100 with 1 Being extremely anxious and 100 being totally not anxious, rate your level of anxiety in this U.S. Economy" results in

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

True or False: The question: "How much did you earn last year rounded to the nearest hundreds of dollars?" will most likely result in measurement error.

A population frame for a survey contains a listing of 72,345 names.Using a table of random Numbers, how many digits will the code numbers for each member of your population contain?

Organizing and Visualizing

Numerical Descriptive Measures

Basic Probability

Discrete Probability Distributions

Conthe Tinuonormausl Disdis Tributionstribution and Other

Sampling Distributions

Confidence Interval Estimation

Fundamentals of Hypothesis Testing: One-Sample Tests

Two-Sample Tests

Analysis of Variance

Chi-Square and Nonparametric

Simple Linear Regression

Introduction to Multiple

Multiple Regression

Time-Series Forecasting

Business Analytics

A Roadmap for Analyzing Data

Statistical Applications in Quality Management

Decision Making

Filters

Exam 1: Defining and Collecting Data

True or False: Sampling error can be reduced by taking larger sample sizes.

Which of the following yields a systematic sample?

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

True or False: Measurement error can become an ethical issue when an interviewer purposely guides the responses in a particular direction.

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

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

Marital status is an example of a numerical variable.

A sample of 300 subscribers to a particular magazine is selected from a population frame of 9,000 subscribers.If, upon examining the data, it is determined that no subscriber had been Selected in the sample more than once,

Which of the following is most likely a population as opposed to a sample?

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.

A statistics student found a reference in the campus library that contained the median family Incomes for all 50 states.She would report her data as being collected using

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

Referring to Scenario 1-2, the possible responses to the question "On the scale of 1 to 100 with 1 Being extremely anxious and 100 being totally not anxious, rate your level of anxiety in this U.S. Economy" results in

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

True or False: The question: "How much did you earn last year rounded to the nearest hundreds of dollars?" will most likely result in measurement error.

A population frame for a survey contains a listing of 72,345 names.Using a table of random Numbers, how many digits will the code numbers for each member of your population contain?

Organizing and Visualizing

Numerical Descriptive Measures

Basic Probability

Discrete Probability Distributions

Conthe Tinuonormausl Disdis Tributionstribution and Other

Sampling Distributions

Confidence Interval Estimation

Fundamentals of Hypothesis Testing: One-Sample Tests

Two-Sample Tests

Analysis of Variance

Chi-Square and Nonparametric

Simple Linear Regression

Introduction to Multiple

Multiple Regression

Time-Series Forecasting

Business Analytics

A Roadmap for Analyzing Data

Statistical Applications in Quality Management

Decision Making

Filters