SOLUTION: ANY HELP WOULD MAKE A DIFFERENCE! thank you!!!
A medical researcher wishes to determine the percentage of females who take vitamins. He wishes to be 99% confident that the es
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-> SOLUTION: ANY HELP WOULD MAKE A DIFFERENCE! thank you!!!
A medical researcher wishes to determine the percentage of females who take vitamins. He wishes to be 99% confident that the es
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Question 564427: ANY HELP WOULD MAKE A DIFFERENCE! thank you!!!
A medical researcher wishes to determine the percentage of females who take vitamins. He wishes to be 99% confident that the estimate is within 4% of the true proportion. How large should the sample size be? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A medical researcher wishes to determine the percentage of females who take vitamins. He wishes to be 99% confident that the estimate is within 4% of the true proportion. How large should the sample size be?
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n = [z/E]^2*pq
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n = [2.5758/0.04]^2*(1/2)(1/2)
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n = 4146.81*(1/4) = 1037 when rounded up.
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cheers,
Stan H.
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