SOLUTION: A laboratory worker finds that 3% of his blood samples test positive for the HIV virus. In a random sample of 70 blood tests, what is the standard deviation of the number of peopl
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Question 1039891: A laboratory worker finds that 3% of his blood samples test positive for the HIV virus. In a random sample of 70 blood tests, what is the standard deviation of the number of people that test positive for the HIV virus? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A laboratory worker finds that 3% of his blood samples test positive for the HIV virus. In a random sample of 70 blood tests, what is the standard deviation of the number of people that test positive for the HIV virus?
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std = sqrt[p*q/n] = sqrt[0.03*0.97/70] = 0.0204
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Cheers,
Stan H.
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