SOLUTION: A research company desires to know the mean consumption of milk per week among people over age 28. Assume a population standard deviation of 0.9.
How large of a sample would be
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How large of a sample would be
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Question 824846: A research company desires to know the mean consumption of milk per week among people over age 28. Assume a population standard deviation of 0.9.
How large of a sample would be required in order to estimate the mean weekly consumption of people over age 28 at the 99% confidence level with an error of at most 0.05 liters? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A research company desires to know the mean consumption of milk per week among people over age 28. Assume a population standard deviation of 0.9.
How large of a sample would be required in order to estimate the mean weekly consumption of people over age 28 at the 99% confidence level with an error of at most 0.05 liters?
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n = [z*s/E)^2
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n = [2.5758*0.9/0.05]^2 = 2150 when rounded up
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Cheers,
Stan H.
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