A Professor at a Large University Believes That Students Take

question 68

Essay

A professor at a large university believes that students take an average of 15 credit hours per term. A random sample of 24 students in her class of 250 students reported the following number of credit hours that they were taking:

$\begin{array}{|l|l|l|l|l|l|l|l|l|l|l|l|}\hline 12 & 13 & 14 & 14 & 15 & 15 & 15 & 16 & 16 & 16 & 16 & 16 \\\hline 17 & 17 & 17 & 18 & 18 & 18 & 18 & 19 & 19 & 19 & 20 & 21 \\\hline\end{array}$

-Find a 95% confidence interval for the number of credit hours taken by the students in the professor's class. Interpret your interval.

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Definitions:

Preconceived Ideas

Opinions or beliefs formed before having adequate evidence, often leading to bias.

Judgment

The cognitive process of forming an opinion, evaluation, or decision, often by discerning and comparing information.

Biologically Based

Characteristics or behaviors that are derived from genetic, physiological, or developmental processes of organisms.

Athletic Ability

The combination of physical skills and talents that contribute to a person's proficiency in sports and physical activities.