SOLUTION: if the population standard deviation is 8, how large a sample is necessary to have a standard error that is less than or equal to 4 points
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Question 659394: if the population standard deviation is 8, how large a sample is necessary to have a standard error that is less than or equal to 4 points Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! if the population standard deviation is 8, how large a sample is necessary to have a standard error that is less than or equal to 4 points
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std of sample means = 8/sqrt(n) <= 4
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sqrt(n) >= 8/4
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sqrt(n) >= 2
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n >= 4
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Cheers,
Stan H.
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