Question
to estimate the mean salary of full professors at american colleges and universities, you obtain the salaries of a random sample of 400 full professors,
to estimate the mean salary of full professors at american colleges and universities, you obtain the salaries of a random sample of 400 full professors, the sample mean is $73,200 and the sample standard deviation is $4,400, what is a 99% confidence interval for the mean salary?
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Making Hard Decisions with decision tools
Authors: Robert Clemen, Terence Reilly
3rd edition
538797576, 978-0538797573
