A Professor Would Like to Test the Hypothesis That the Average

question 5

Multiple Choice

A professor would like to test the hypothesis that the average number of minutes that a student needs to complete a statistics exam has a standard deviation that is less than 5.0 minutes. A random sample of 15 students was selected and the sample standard deviation for the time needed to complete the exam was found to be 4.0 minutes. The test statistic for this hypothesis test would be _______.

• A)8.96
• B)17.67
• C)13.61
• D)10.42

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Definitions:

Clinical Interview

A method used in psychology and psychiatry that involves asking questions and engaging in a conversation with a client to assess their mental health status.

Standard Deviations

A statistical measure that quantifies the amount of variation or dispersion of a set of data values from the mean.

Normal Distribution

A bell-shaped frequency distribution curve where most occurrences take place in the middle of the range and taper off symmetrically towards extremes.

Marlowe-Crowne Scale

A psychological questionnaire measuring social desirability bias, indicating how much people's responses are influenced by wanting to be perceived favorably.