Exhibit 6-10 A Professor at a Local University Noted That the Exam

question 91

Multiple Choice

Exhibit 6-10
A professor at a local university noted that the exam grades of her students were normally distributed with a mean of 73 and a standard deviation of 11.
-Refer to Exhibit 6-10. The professor has informed us that 7.93 percent of her students received grades of A. What is the minimum score needed to receive a grade of A?

• A)90.51
• B)93.2
• C)88.51
• D)100.00

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Definitions:

Critical Value Approach

A method in hypothesis testing that involves comparing the test statistic to pre-determined values to decide whether to reject the null hypothesis.

Model Significant

A measure of the likelihood that the relationships observed in the data occur due to something other than chance.

Correlation Coefficient

A metric that evaluates how closely related the movements of two variables are.

Linear Relationship

A relationship between two variables where a change in one variable is associated with a proportional change in the other variable, often represented by a straight line when graphed.