A Researcher Is Interested in the Effect of Exercise on Stamina

question 160

Multiple Choice

A researcher is interested in the effect of exercise on stamina in elderly patients.The patients are randomly assigned to be in a high-exercise or low-exercise training program for 8 weeks.At the end of the program,their stamina is measured by seeing how long they can walk comfortably on a treadmill.In this study,the dependent variable is

• A) number of minutes on the treadmill.
• B) the exercise program (high versus low).
• C) heart rate during the exercise program.
• D) the 8-week duration of the exercise program.

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Definitions:

Market Supply Curve

A graphical representation that shows the relationship between the price of a good and the total output that producers are willing and able to sell at that price.

Acceptable Prices

Prices that consumers feel are fair for products or services, and are willing to pay.

Total Revenues

The overall amount of money received by a firm from sales of its products or services, before any costs are deducted.

Equilibrium Point

The condition in a market where the supply of goods matches demand, leading to a stable price and quantity for the good or service.