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erinpape
Aug 8, 2008, 11:17 AM
Assume we want to estimate the mean IQ for the population of statistics professors. How many must be randomly chosen for IQ tests if we want 95% confidence that the sample mean is within 2 IQ points of the population mean?

galactus
Aug 8, 2008, 02:49 PM
Were you given a standard deviation?