The 18 Faculty Members in a College Math Department Range

question 8

Multiple Choice

The 18 faculty members in a college math department range in age from 32 to 68. A stemplot follows: The first and third quartiles of the ages of the faculty members are:

• A)38 and 57 years.
• B)39 and 57 years.
• C)39 and 58 years.
• D)40 and 58 years.

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Definitions:

Research Hypothesis

A specific, testable prediction about what you expect to happen in your study.

Population Hypothesis

A statement about a characteristic or parameter of a population that is to be tested through statistical analysis.

Null Hypothesis

Another rephrased definition: A default hypothesis that suggests no effect or no difference, serving as a basis for statistical testing.

Alternative Hypothesis

A statement that contradicts the null hypothesis, suggesting some effect, difference, or relationship exists in the population.