A Health Psychologist Is Interested in the Effectiveness of a New

question 32

Multiple Choice

A health psychologist is interested in the effectiveness of a new exercise on reducing the rate of heart attacks because the exercise requires no equipment and, therefore, can be done without cost.
-What is the null hypothesis?

• A)People will not participate because it does not cost them any money.
• B)The exercise will make no difference in the rate of heart attacks.
• C)The exercise will make no difference or will reduce the rate of heart attacks.
• D)The exercise will make no difference or will increase the rate of heart attacks.

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The simplest form of a fraction, where the numerator and denominator are reduced to their smallest possible values.

Ratio

A mathematical expression that compares two numbers by division, indicating how much of one value there is compared to another.

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Lowest Terms

A fraction simplified to its most basic form, where the numerator and denominator are the smallest possible integers.