A researcher wants to test the effects of daily meditation on stress levels of individuals. She divides the participants randomly into a treatment group and into a control group and conducts an experiment
She pays for meditation classes for one-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? 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 finance 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 finance from the researcher to join the meditation class; the treatment group is the group that does not.
C
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"Opportunity cost" is
A) the monetary cost of one's actions. B) the objective cost of one's actions. C) the regret one feels when making a sacrifice. D) the value one places on the item, project, or plan he has chosen to pursue. E) none of the above.
Using the information in the table shown, the marginal revenue:
This table represents the revenues faced by a monopolist.
A. increases, then decreases as output increases.
B. is negative after the 6th unit.
C. increases as output increases.
D. decreases, then increases after the 6th unit.
Refer to the information. If government desired to raise the equilibrium GDP to $650, it could:
Answer the question on the basis of the following information for a mixed
open economy. The letters Y, C a , I g , X n , G, and T stand for GDP, consumption, gross
investment, net exports, government purchases, and net taxes respectively. Figures are in
billions of dollars.
A. raise G by $45 and reduce T by $10.
B. raise G by $40 and reduce T by $30.
C. raise G by $30 or reduce T by $40.
D. raise both G and T by $40.
The Coca-Cola Company has chosen to keep its soda formula a secret, ________
A) because soda is a non-rival good B) to preserve its patent rights C) because the soda formula is a rival good D) to reap the benefits of excludability