Question 1

A self-selected sample is one in which the individuals choose themselves to be in the sample.

Accepted Answer

A) True 
 B)False

Question 2

Briefly describe three types of nonsampling errors.

Accepted Answer

a.Errors in data acquisition: Errors tha

Question 3

"Wouldn't you agree that foreign cars are better than American cars?" is an example of a well-worded survey question.

Accepted Answer

A) True 
 B)False

Question 4

A survey is an example of a(n) ____________________ study.

Accepted Answer

The answer of A survey is an example of a(n)...

Question 5

Gender, occupation, and age are all examples of ____________________ variables.

Accepted Answer

The answer of Gender, occupation, and age are all examples...

Question 6

NARRBEGIN: Smoking and Heart Attacks
Smoking and Heart Attacks
A medical researcher is interested in investigating the relationship between smoking and heart attacks
NARREND
-{Smoking and Heart Attacks Narrative} How can you show that smoking causes heart attacks without being able to do a designed experiment?

Accepted Answer

Instead of conducting one simple observa

Question 7

Nonresponse error occurs when someone was not selected to participate in the survey.

Accepted Answer

A) True 
 B)False

Question 8

A senator wants to estimate the mean age of registered voters in her state. Unfortunately, she does not have a complete list of households in her state. Describe a sampling plan that would be suitable for her purposes.

Accepted Answer

Use cluster sampling, where ea

Question 9

NARRBEGIN: Smoking and Heart Attacks
Smoking and Heart Attacks
A medical researcher is interested in investigating the relationship between smoking and heart attacks
NARREND
-{Smoking and Heart Attacks Narrative} Briefly describe how the researcher might design an observational study to investigate the relationship between smoking and heart attacks

Accepted Answer

Randomly sample a group of smokers and r

Question 10

Sampling error refers to the difference between the sample and the population that exists only because of the observations that happened to be selected for the sample by chance.

Accepted Answer

A) True 
 B)False

Question 11

Sampling error is the result of a mistake made during the sampling process.

Accepted Answer

A) True 
 B)False

Question 12

List one advantage and one disadvantage of a personal interview as a method of data collection.

Accepted Answer

Advantages: It has a higher expected res

Question 13

The Admissions Officer from a large university mailed a survey to 600 students selected at random. The sample was designed to include 150 students randomly selected from each of the freshman, sophomore, junior, and senior classes on campus. What sampling method was used?

Accepted Answer

A) Simple random sample 
B) Systematic sample 
C) Stratified random sample 
D) Cluster sample 
A) Simple random sample 
B) Systematic sample 
C) Stratified random sample 
D) Cluster sample

Question 14

NARRBEGIN: Smoking and Heart Attacks
Smoking and Heart Attacks
A medical researcher is interested in investigating the relationship between smoking and heart attacks
NARREND
-{Smoking and Heart Attacks Narrative} What type of studies are plausible in this particular scenario, observational studies or experiments?

Accepted Answer

Observational studies are the

Question 15

To reduce sampling error, minimize the chance for bias to occur during sampling.

Accepted Answer

A) True 
 B)False

Question 16

A sampling error can be reduced by taking a larger sample size.

Accepted Answer

A) True 
 B)False

Question 17

A self-selected sample is the group of individuals who were randomly selected to be in the sample, then agreed to participate in the study.

Accepted Answer

A) True 
 B)False

Question 18

Nonresponse error occurs when responses are not obtained from some members of the sample.

Accepted Answer

A) True 
 B)False

Question 19

In designing a survey, demographic questions must be avoided.

Accepted Answer

A) True 
 B)False

Question 20

An experiment involves collecting data about persons or objects by deliberately exposing them to some kind of change and comparing the results.

Accepted Answer

A) True 
 B)False

A self-selected sample is one in which the individuals choose themselves to be in the sample.

Briefly describe three types of nonsampling errors.

"Wouldn't you agree that foreign cars are better than American cars?" is an example of a well-worded survey question.

A survey is an example of a(n) ____________________ study.

Gender, occupation, and age are all examples of ____________________ variables.

Nonresponse error occurs when someone was not selected to participate in the survey.

A senator wants to estimate the mean age of registered voters in her state. Unfortunately, she does not have a complete list of households in her state. Describe a sampling plan that would be suitable for her purposes.

Sampling error refers to the difference between the sample and the population that exists only because of the observations that happened to be selected for the sample by chance.

Sampling error is the result of a mistake made during the sampling process.

List one advantage and one disadvantage of a personal interview as a method of data collection.

The Admissions Officer from a large university mailed a survey to 600 students selected at random. The sample was designed to include 150 students randomly selected from each of the freshman, sophomore, junior, and senior classes on campus. What sampling method was used?

To reduce sampling error, minimize the chance for bias to occur during sampling.

A sampling error can be reduced by taking a larger sample size.

A self-selected sample is the group of individuals who were randomly selected to be in the sample, then agreed to participate in the study.

Nonresponse error occurs when responses are not obtained from some members of the sample.

In designing a survey, demographic questions must be avoided.

An experiment involves collecting data about persons or objects by deliberately exposing them to some kind of change and comparing the results.

What Is Statistics

Graphical Descriptive Techniques I

Graphical Descriptive Techniques II

Numerical Descriptive Techniques

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations

Analysis of Variance

Chi-Squared Tests Optional

Simple Linear Regression and Correlation

Multiple Regression

Filters

Exam 5: Data Collection and Sampling

A self-selected sample is one in which the individuals choose themselves to be in the sample.

Briefly describe three types of nonsampling errors.

"Wouldn't you agree that foreign cars are better than American cars?" is an example of a well-worded survey question.

A survey is an example of a(n) ____________________ study.

Gender, occupation, and age are all examples of ____________________ variables.

Nonresponse error occurs when someone was not selected to participate in the survey.

A senator wants to estimate the mean age of registered voters in her state. Unfortunately, she does not have a complete list of households in her state. Describe a sampling plan that would be suitable for her purposes.

Sampling error refers to the difference between the sample and the population that exists only because of the observations that happened to be selected for the sample by chance.

Sampling error is the result of a mistake made during the sampling process.

List one advantage and one disadvantage of a personal interview as a method of data collection.

The Admissions Officer from a large university mailed a survey to 600 students selected at random. The sample was designed to include 150 students randomly selected from each of the freshman, sophomore, junior, and senior classes on campus. What sampling method was used?

To reduce sampling error, minimize the chance for bias to occur during sampling.

A sampling error can be reduced by taking a larger sample size.

A self-selected sample is the group of individuals who were randomly selected to be in the sample, then agreed to participate in the study.

Nonresponse error occurs when responses are not obtained from some members of the sample.

In designing a survey, demographic questions must be avoided.

An experiment involves collecting data about persons or objects by deliberately exposing them to some kind of change and comparing the results.

What Is Statistics

Graphical Descriptive Techniques I

Graphical Descriptive Techniques II

Numerical Descriptive Techniques

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations

Analysis of Variance

Chi-Squared Tests Optional

Simple Linear Regression and Correlation

Multiple Regression

Filters