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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An increase in the level of prices of goods and services will do what to the long-run aggregate supply curve?
A) not shift the curve at all B) depends upon the long-run aggregate demand curve C) shift it to the right D) shift it to the left
The percentage of deposits that banks must hold in reserve is the
A) excess reserve ratio. B) required reserve ratio. C) total reserve ratio. D) currency ratio.