A 95% Confidence Interval for a Population Mean Is Determined

question 46

Multiple Choice

A 95% confidence interval for a population mean is determined to be 100 to 120. For the same data, if the confidence coefficient is reduced to .90, the confidence interval for μ

• A) becomes narrower.
• B) becomes wider.
• C) does not change.
• D) becomes 100.1 to 120.1.

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Definitions:

Behavior Change

A modification in an individual's actions or reactions often aimed at improving health or social outcomes.

Self-Efficacy

A person's belief in their capacity to execute behaviors necessary to produce specific performance attainments.

Planning

The process of setting objectives, determining strategies to achieve them, and organizing activities to accomplish these objectives.

Health Action Process Approach

A psychological theory that models how people come to the decision to take action on their health and how they implement and maintain those actions.