A Researcher Selects a Sample of 49 Participants from a Population

question 26

Multiple Choice

A researcher selects a sample of 49 participants from a population with a mean of 12 and a standard deviation of 3.5.What is the probability of selecting a sample mean that is at least equal to the population mean?

• A) .50
• B) equal to the probability of selecting a sample mean that is at most equal to the population mean
• C) .50 and equal to the probability of selecting a sample mean that is at most equal to the population mean
• D) none of these

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Definitions:

Effective Message

Communication that is clear, concise, and tailored to the audience to achieve its intended effect.

Indirect Approach

A communication method where the main message is not presented directly at the beginning but is gradually led up to.

We-viewpoint

A communication strategy that emphasizes shared perspectives and collective interests, often used to foster teamwork and collaboration.

Prefatory Part

The initial section of a book or document that includes introductory material, such as a foreword or preface, setting the stage for the main content.