Question 1

True or False: The brand of TV one owns is an example of an ordinal scaled variable.

Accepted Answer

A) True 
 B)False

Question 2

True or False: Measurement error can become an ethical issue when a survey sponsor chooses leading questions that guide the responses in a particular direction.

Accepted Answer

A) True 
 B)False

Question 3

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.

Accepted Answer

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

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

A study attempted to estimate the proportion of Florida residents who were willing to spend more tax dollars on protecting the beaches from environmental disasters.Twenty-five hundred Florida residents were surveyed.What type of data collection procedure was most likely used to collect the data for this study?

Accepted Answer

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

Question 6

________ results from the failure to collect data on all subjects in the sample.

Accepted Answer

Nonrespons

Question 7

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

Accepted Answer

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

Question 8

True or False: A population is the totality of items or things under consideration.

Accepted Answer

A) True 
 B)False

Question 9

TABLE 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.
-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 10

Which of the following is not a reason for selecting a sample?

Accepted Answer

A) A sample is less time consuming than a census. 
B) A sample is less costly to administer than a census. 
C) A sample is usually not a good representation of the target population. 
D) A sample is less cumbersome and more practical to administer. 
A) A sample is less time consuming than a census. 
B) A sample is less costly to administer than a census. 
C) A sample is usually not a good representation of the target population. 
D) A sample is less cumbersome and more practical to administer.

Question 11

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

Accepted Answer

The answer of The Dean of Students conducted a survey...

Question 12

Coverage error results in a ________.

Accepted Answer

The answer of Coverage error results in a ________....

Question 13

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.

Accepted Answer

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

Question 14

TABLE 1-2
A Wall Street Journal poll asked 2,150 adults in the United States a series of questions to find out their view on the U.S.economy.
-Referring to Table 1-2,the possible responses to the question "How many people in your household are unemployed currently?" are values from a

Accepted Answer

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

Question 15

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 16

True or False: Using different frames to generate data can lead to totally different conclusions.

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

The answer of A personal computer user survey was conducted.Hours...

Question 18

True or False: The question: "Have you used any form of illicit drugs over the past 2 months?" will most likely result in measurement error if the question is answered.

Accepted Answer

A) True 
 B)False

Question 19

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.The population of interest is

Accepted Answer

A) all the customers who have bought a Blu-ray player made by the company over the past 12 months. 
B) all the customers who have bought a Blu-ray player made by the company and brought it in for repair over the past 12 months. 
C) all the customers who have used a Blu-ray player over the past 12 months. 
D) all the customers who have ever bought a Blu-ray player made by the company. 
A) all the customers who have bought a Blu-ray player made by the company over the past 12 months. 
B) all the customers who have bought a Blu-ray player made by the company and brought it in for repair over the past 12 months. 
C) all the customers who have used a Blu-ray player over the past 12 months. 
D) all the customers who have ever bought a Blu-ray player made by the company.

Question 20

Which of the following yields a simple random 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) The names of 50 students in a class are written on 50 different pieces of paper and put in a hat.The first 15 pieces of paper are selected blindly one at a time without replacing them back in the hat after shuffling the papers thoroughly. 
D) All students in a class are divided into groups according to the rows that they are seated.One of the groups is randomly selected. 
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) The names of 50 students in a class are written on 50 different pieces of paper and put in a hat.The first 15 pieces of paper are selected blindly one at a time without replacing them back in the hat after shuffling the papers thoroughly. 
D) All students in a class are divided into groups according to the rows that they are seated.One of the groups is randomly selected.

Exam 1: Defining and Collecting Data

True or False: The brand of TV one owns is an example of an ordinal scaled variable.

True or False: Measurement error can become an ethical issue when a survey sponsor chooses leading questions that guide the responses in a particular direction.

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.

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

________ results from the failure to collect data on all subjects in the sample.

True or False: A population is the totality of items or things under consideration.

Which of the following is not a reason for selecting a sample?

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

Coverage error results in a ________.

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.

TABLE 1-2 A Wall Street Journal poll asked 2,150 adults in the United States a series of questions to find out their view on the U.S.economy. -Referring to Table 1-2,the possible responses to the question "How many people in your household are unemployed currently?" are values from a

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.

True or False: Using different frames to generate data can lead to totally different conclusions.

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

True or False: The question: "Have you used any form of illicit drugs over the past 2 months?" will most likely result in measurement error if the question is answered.

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.The population of interest is

Which of the following yields a simple random sample?

Numerical Descriptive Measures

Basic Probability

Discrete Probability Distributions

The Normal Distribution and Other Continuous Distributions

Sampling Distributions

Confidence Interval Estimation

Fundamentals of Hypothesis Testing: One-Sample Tests

Two-Sample Tests

Analysis of Variance

Chi-Square Tests and Nonparametric Tests

Simple Linear Regression

Introduction to Multiple Regression

Multiple Regression Model Building

Time-Series Forecasting

A Roadmap for Analyzing Data

Statistical Applications in Quality Management

Decision Making

Index Numbers

Chi-Square Tests for the Variance or Standard Deviation

Mcnemar Test for the Difference Between Two Proportions Related Samples

The Analysis of Means Anom

The Analysis of Proportions Anop

The Randomized Block Design

The Power of a Test

Estimation and Sample Size Determination for Finite Populations

Application of Confidence Interval Estimation in Auditing

Sampling From Finite Populations

The Normal Approximation to the Binomial Distribution

Counting Rules

Lets Get Started Big Things to Learn First

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