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(The Education Trust) publishes data on U. S. colleges and universities. Six-year graduation rates and student-related expenditures per full-time student for 2007 were reported for the seven primarily undergraduate public universities in California with enrollments between 10,000 and 20,000. Suppose that a 90% confidence interval for the prediction of student expenditures at a university with a graduation rate of 40% was (5,226, 8,620)
(a) Determine the point estimate for the prediction of student expenditures at a university with a graduation rate of 40%.
(b) Calculate the margin of error.
(c) Calculate the standard error of the prediction of student expenditures at a university with a graduation rate of 40%. (Use a table or technology. Round your answer to one decimal place.)
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(The Education Trust) publishes data on U. S. colleges and universities. Six-year graduation rates a...
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