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dt hours on average, each student takes per quarter A random sample bility and assumed that the sample standard deviation provided a good

dt hours on average, each student takes per quarter A random sample bility and assumed that the sample standard deviation provided a good

FINANCIAL ACCOUNTING
FINANCIAL ACCOUNTING
10th Edition
ISBN:9781259964947
Author:Libby
Publisher:Libby
Chapter1: Financial Statements And Business Decisions
Section: Chapter Questions
Problem 1Q
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问题16 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 S4oo per credit hour. The university system administrators are contemplating charging each student a set fee of S7.000 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 average, each student takes per quarter. A random sample of 250 students ylelds a mean of 141 credit hours per quarter and a standard deviation of 23 credit hours per quarter. Suppose the administration wanted to estimate the mean to within o.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? O aln 1844 O bin- 2033 Ocin-2031 geס2 - Odn
Transcribed Image Text:问题16 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 S4oo per credit hour. The university system administrators are contemplating charging each student a set fee of S7.000 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 average, each student takes per quarter. A random sample of 250 students ylelds a mean of 141 credit hours per quarter and a standard deviation of 23 credit hours per quarter. Suppose the administration wanted to estimate the mean to within o.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? O aln 1844 O bin- 2033 Ocin-2031 geס2 - Odn
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