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OpenStudy (anonymous):
A certain species of dolphin breaths a mean of 2.31 times per minute with a variance of 1.28. Given the central limit theorem, if you repeatedly pull 17 dolphins from the population, what will be the variance of the mean of the sampling distribution?
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OpenStudy (anonymous):
I figured out the standard error in the mean at 1.28/sqrt(17)=0.31, is that what they're looking for?
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