A Researcher Records a Sample of 30 Exam Scores and Finds

question 3

Multiple Choice

A researcher records a sample of 30 exam scores and finds that the population variance for these data is larger than the sample variance.Is this possible?

• A) Yes, the population variance is usually larger than the sample variance.
• B) No, the population variance will only be larger when at least 50 scores are recorded.
• C) No, the sample variance will be larger because SS is divided by degrees of freedom in the denominator of the variance formula.
• D) Not possible to know because the scores are not given.

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Definitions:

Reason And Intellect

The faculties for thinking, reasoning, and applying knowledge to solve problems or understand complex ideas.

Problem-Solving Style

Reflects the way a person gathers and evaluates information when solving problems and making decisions.

Information Gathering

The process of collecting data, facts, or insights from various sources to inform decisions, analyses, or understandings.

Stigma

A phenomenon whereby an individual is rejected as a result of an attribute that is deeply discredited by his or her society.