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theigh1hnder
Jan 23, 2008, 06:12 PM
if the mean age of retirees from the teaching proffession is 57 years old with a standard deviation of 5.6, find the minimum sample size so that the probability that sample mean exceeds 55 years is .6
So me all steps and how u calculated this please I need help

RickJ
Jan 23, 2008, 06:23 PM
<Moved from Introductions to Math & Sciences>