A Professor Tells a Class That Her Exams Will Cover

question 8

Multiple Choice

A professor tells a class that her exams will cover information from class lectures, class discussion, and reading assignments. However, the exam includes questions related to only reading assignments. Students complain because the exam is

• A)not reliable.
• B)not valid.
• C)not reliable or valid.
• D)objective.

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Definitions:

Population Parameter

A numerical value that represents a characteristic of a population, such as its mean or variance.

Hypothesis

A proposed explanation for a phenomenon, made as a starting point for further investigation.

Assumption

A basic condition or premise considered to be true without verification or proof, often used as a starting point for further analysis.

Power Curve

A graph of the probability of rejecting H0 for all possible values of the population parameter not satisfying the null hypothesis. The power curve provides the probability of correctly rejecting the null hypothesis.