A Researcher Randomly Selects a Sample of Athletes and Reports

question 50

Multiple Choice

A researcher randomly selects a sample of athletes and reports that their average score on a health and fitness scale is 23.Based on the characteristics of the sample mean,what does this say about the mean in the population?

• A) Nothing; it was just a sample.
• B) There is no way to know without knowing the size of the sample.
• C) It tells us that the mean in the population is no less than 23.
• D) We expect that the population mean is equal to 23 because the sample mean is an unbiased estimator of the population mean.

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Definitions:

Reserved Powers

Reserved powers are those powers which are not written down or assigned by law or constitution but are assumed to exist due to their necessity in governance.

National Government

The organization and institution that possess the political sovereignty and control for a nation or country.

Slavery

A system in which individuals are owned by others, deprived of personal freedom, and forced to work.

Supreme Court

The highest federal court in the United States, with ultimate appellate jurisdiction over all federal courts and direct jurisdiction over some types of cases.