If We Are Testing the Difference Between the Means of Two

question 44

Multiple Choice

If we are testing the difference between the means of two normally distributed independent populations with samples of n₁ = 10, n₂ = 10, the degrees of freedom for the t statistic is ________.

• A) 19
• B) 18
• C) 9
• D) 8
• E) 20

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Definitions:

Readiness To Change

A person's willingness and preparedness to make alterations in their behavior or lifestyle.

Assess

The act of evaluating or determining the nature, ability, or quality of something.

Methods

Systematic and organized ways of doing something to achieve a goal, often following a specific procedure or set of rules.

Brief Interventions

Short-term counseling or treatment strategies aimed at reducing or stopping risky behavior and promoting healthy lifestyle changes.