Question 1

Which of the following statements is true?

Accepted Answer

A)  A bar chart has many limitations in comparison to pie charts. 
B)  A bar chart does not allow for the comparison of a single variable across many segments. 
C)  A bar chart can only be used to represent independent variables. 
D)  A bar chart indicates the frequency of a variable by using rectangles of different heights or lengths. 
A)  A bar chart has many limitations in comparison to pie charts. 
B)  A bar chart does not allow for the comparison of a single variable across many segments. 
C)  A bar chart can only be used to represent independent variables. 
D)  A bar chart indicates the frequency of a variable by using rectangles of different heights or lengths.

Question 2

To test the effectiveness of a newly developed medicine,300 patients suffering from a heart ailment were divided into two groups of 150 people each.One group was treated with the new medicine,while the other was treated with an already existing,widely used medicine.In this scenario,identify the treatment group and the control group.What is the rationale behind dividing patients into two groups?

Accepted Answer

The treatment group refers to the group

Question 3

The weights of six students in the seventh grade are 120 lbs,110 lbs,105 lbs,100 lbs,96 lbs,and 90 lbs.The average weight of the six students is ________.

Accepted Answer

A)  105 lbs. 
B)  103.5 lbs. 
C)  100 lbs. 
D)  95 lbs. 
A)  105 lbs. 
B)  103.5 lbs. 
C)  100 lbs. 
D)  95 lbs.

Question 4

A correlation between two variables implies that ________.

Accepted Answer

A)  there is a cause-effect relationship between the two variables 
B)  it is impossible to measure one variable without measuring the other 
C)  there is a mutual relationship between both the variables 
D)  when one variable changes, the other variable always changes by exactly the same amount 
A)  there is a cause-effect relationship between the two variables 
B)  it is impossible to measure one variable without measuring the other 
C)  there is a mutual relationship between both the variables 
D)  when one variable changes, the other variable always changes by exactly the same amount

Question 5

A local swimming club enrolled thirty-five new members during the current year and charged each member a onetime membership fee of $200.What is the total membership fee collected by the club from the new members this year?

Accepted Answer

A)  $1,750 
B)  $2,000 
C)  $7,000 
D)  $3,500 
A)  $1,750 
B)  $2,000 
C)  $7,000 
D)  $3,500

Question 6

A model is based on an assumption that an additional year of education increases a student's future wage by 20 percent.
-Refer to the scenario above.Which of the following statements is true about the model's prediction?

Accepted Answer

A)  The prediction cannot be verified empirically. 
B)  The prediction is precise, exact, and accurate for the entire population. 
C)  The prediction is an approximate relationship and may not hold for everyone. 
D)  The prediction can be applied to estimate the returns only for a limited number of years of additional education. 
A)  The prediction cannot be verified empirically. 
B)  The prediction is precise, exact, and accurate for the entire population. 
C)  The prediction is an approximate relationship and may not hold for everyone. 
D)  The prediction can be applied to estimate the returns only for a limited number of years of additional education.

Question 7

The following table displays the marks obtained by three students on an economics test.
   
a)Calculate the mean marks obtained by the three students.
b)Suppose one of the scores was reported incorrectly.Charles scored 38 instead of 83.How will the mean change if the correction is incorporated?
c)How does the amount of data used affect the accuracy of a model?

Accepted Answer

a)The mean,or average,is the sum of the

Question 8

A variable that is potentially affected by an experimental treatment is referred to as a(n)________.

Accepted Answer

A)  omitted variable 
B)  independent variable 
C)  dependent variable 
D)  compulsory variable 
A)  omitted variable 
B)  independent variable 
C)  dependent variable 
D)  compulsory variable

Question 9

What are the two important properties of all models?

Accepted Answer

i)All models are approximations.A model

Question 10

Suppose a pharmaceutical company wants to test the effectiveness of a new drug in curing cancer.Which approach should it use to test whether the new drug is more effective than existing medicines that are widely used?

Accepted Answer

The best way to test the effectiveness o

Question 11

A researcher wants to test the effects of daily meditation on the stress levels of individuals.She divides the participants randomly into a treatment group and a control group and conducts an experiment.She pays for meditation classes for half of the subjects,and the other half does not join the class.Which of the following statements is true of the two groups in this experiment?

Accepted Answer

A)  The participants in the treatment group are assigned by chance, whereas the ones in the control group are assigned by choice. 
B)  The participants in the control group are assigned by chance, whereas the participants in the treatment group are assigned by choice. 
C)  The treatment group is the group of subjects that receives payment from the researcher for meditation classes; the control group is the group that does not. 
D)  The control group is the group of subjects that receives payment from the researcher to join the meditation class; the treatment group is the group that does not. 
A)  The participants in the treatment group are assigned by chance, whereas the ones in the control group are assigned by choice. 
B)  The participants in the control group are assigned by chance, whereas the participants in the treatment group are assigned by choice. 
C)  The treatment group is the group of subjects that receives payment from the researcher for meditation classes; the control group is the group that does not. 
D)  The control group is the group of subjects that receives payment from the researcher to join the meditation class; the treatment group is the group that does not.

Question 12

A model is based on an assumption that an additional year of education increases a student's future wage by 20 percent.
-Refer to the scenario above.Which of the following statements is true of the model?

Accepted Answer

A)  The predictions of this model cannot be tested with data. 
B)  The predictions of this model are accurate and will hold for all individuals. 
C)  The predictions of this model can be applied to unlimited years of additional education. 
D)  The model predicts that two additional years of education is likely to increase future earnings by 60 percent. 
A)  The predictions of this model cannot be tested with data. 
B)  The predictions of this model are accurate and will hold for all individuals. 
C)  The predictions of this model can be applied to unlimited years of additional education. 
D)  The model predicts that two additional years of education is likely to increase future earnings by 60 percent.

Question 13

What is meant by the term "scientific method?" What are the key components of the scientific method?

Accepted Answer

The scientific method is the name for th

Question 14

What is meant by the term "omitted variable" in correlation analysis? Explain with an example.

Accepted Answer

An omitted variable is something that ha

Which of the following statements is true?

The weights of six students in the seventh grade are 120 lbs,110 lbs,105 lbs,100 lbs,96 lbs,and 90 lbs.The average weight of the six students is ________.

A correlation between two variables implies that ________.

A local swimming club enrolled thirty-five new members during the current year and charged each member a onetime membership fee of $200.What is the total membership fee collected by the club from the new members this year?

A model is based on an assumption that an additional year of education increases a student's future wage by 20 percent. -Refer to the scenario above.Which of the following statements is true about the model's prediction?

A variable that is potentially affected by an experimental treatment is referred to as a(n)________.

What are the two important properties of all models?

Suppose a pharmaceutical company wants to test the effectiveness of a new drug in curing cancer.Which approach should it use to test whether the new drug is more effective than existing medicines that are widely used?

A model is based on an assumption that an additional year of education increases a student's future wage by 20 percent. -Refer to the scenario above.Which of the following statements is true of the model?

What is meant by the term "scientific method?" What are the key components of the scientific method?

What is meant by the term "omitted variable" in correlation analysis? Explain with an example.

The Principles and Practice of Economics

Optimization: Doing the Best You Can

Demand, supply, and Equilibrium

Consumers and Incentives

Sellers and Incentives

Perfect Competition and the Invisible Hand

Trade

Externalities and Public Goods

The Government in the Economy: Taxation and Regulation

Markets for Factors of Production

Monopoly

Game Theory and Strategic Play

Oligopoly and Monopolistic Competition

Trade-Offs Involving Time and Risk

The Economics of Information

Auctions and Bargaining

Social Economics

Filters

Exam 2: Economic Methods and Economic Questions

Which of the following statements is true?

The weights of six students in the seventh grade are 120 lbs,110 lbs,105 lbs,100 lbs,96 lbs,and 90 lbs.The average weight of the six students is ________.

A correlation between two variables implies that ________.

A local swimming club enrolled thirty-five new members during the current year and charged each member a onetime membership fee of $200.What is the total membership fee collected by the club from the new members this year?

A model is based on an assumption that an additional year of education increases a student's future wage by 20 percent. -Refer to the scenario above.Which of the following statements is true about the model's prediction?

A variable that is potentially affected by an experimental treatment is referred to as a(n)________.

What are the two important properties of all models?

Suppose a pharmaceutical company wants to test the effectiveness of a new drug in curing cancer.Which approach should it use to test whether the new drug is more effective than existing medicines that are widely used?

A model is based on an assumption that an additional year of education increases a student's future wage by 20 percent. -Refer to the scenario above.Which of the following statements is true of the model?

What is meant by the term "scientific method?" What are the key components of the scientific method?

What is meant by the term "omitted variable" in correlation analysis? Explain with an example.

The Principles and Practice of Economics

Optimization: Doing the Best You Can

Demand, supply, and Equilibrium

Consumers and Incentives

Sellers and Incentives

Perfect Competition and the Invisible Hand

Trade

Externalities and Public Goods

The Government in the Economy: Taxation and Regulation

Markets for Factors of Production

Monopoly

Game Theory and Strategic Play

Oligopoly and Monopolistic Competition

Trade-Offs Involving Time and Risk

The Economics of Information

Auctions and Bargaining

Social Economics

Filters