A Researcher Wants to Estimate the Mean Cholesterol Level of People

question 55

Multiple Choice

A researcher wants to estimate the mean cholesterol level of people in his city.A random sample of 221 people yields an average cholesterol level of 219,with a margin of error of ±12.Assume the researcher used a confidence level of 90%.

• A)We are 90% confident that 90% of people in the city have a cholesterol level between 207 and 231.
• B)The researcher can be 90% confident that the mean cholesterol level for people in his city is between 207 and 231.
• C)90% of the people sampled have cholesterol levels between 207 and 231.
• D)If we took many random samples of people in the city,about 9 out of 10 of them could produce a confidence interval of (207,231).
• E)About 9 out of 10 people in the researcher's city have cholesterol levels between 207 and 231.

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Definitions:

Decision Makers

Individuals or groups responsible for making choices that determine the course of actions to be taken.

Environments

The various physical and social settings in which individuals, organizations, and systems operate.

Contingencies

Conditions or events that are not certain to occur but may have a significant impact if they do.

Organizational Structure

Organizational structure outlines how activities such as task allocation, coordination, and supervision are directed toward the achievement of organizational aims, defining how job roles and responsibilities are distributed.