A University System Enrolling Hundreds of Thousands of Students Is

question 49

Short Answer

A university system enrolling hundreds of thousands of students is considering a change in the way students pay for their education.Currently,the students pay $400 per credit hour.The university system administrators are contemplating charging each student a set fee of $7,000 per quarter,regardless of how many credit hours each takes.To see if this proposal would be economically feasible,the administrators would like to know how many credit hours,on the average,each student takes per quarter.A random sample of 250 students yields a mean of 14.1 credit hours per quarter and a standard deviation of 2.3 credit hours per quarter.Suppose the administration wanted to estimate the mean to within 0.1 hours at 95% reliability and assumed that the sample standard deviation provided a good estimate for the population standard deviation.How large a total sample would they need to take?

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Definitions:

Circumscribed

Described as being confined or limited to a specific area, often used in medical contexts to describe the boundaries of tumors or lesions.

Palpable

Something that can be felt or touched, often used to describe a physical examination finding.

Epidemiologic Process

The study and analysis of the patterns, causes, and effects of health and disease conditions in defined populations.

Disease Identification

The process of diagnosing or naming a disease based on its characteristic symptoms and signs through various diagnostic methods.