A University Interested in Tracking Its Honors Program Believes That

question 34

Multiple Choice

A university interested in tracking its honors program believes that the proportion of graduates with a GPA of 3.00 or below is less than 0.20. In a sample of 200 graduates, 30 students have a GPA of 3.00 or below. The value of the test statistic and its associated p-value are ________.

• A) t₁₉₉ = -1.77 and p-value = 0.0385
• B) z = -1.77 and p-value = 0.0385
• C) t₁₉₉ = -1.77 and p-value = 0.0768
• D) z = -1.77 and p-value = 0.0768

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Definitions:

Randomization

Controlling for the effects of extraneous variables by ensuring that the variables operate in a manner determined entirely by chance.

Experimental Control

Eliminating the influence of an extraneous variable on the outcome of an experiment by keeping the variable constant in the experimental and control groups.

Spurious Relationship

A false association between two variables that appears to be causally linked but is actually due to an extraneous variable.

Nonexperimental Method

Use of measurement of variables to determine whether variables are related to one another. Also called correlational method.