SOLUTION: The estimate of the population proportion is to be within plus or minus .10, with a 99 percent level of confidence. The best estimate of the population proportion is .45. How large
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Question 1104327: The estimate of the population proportion is to be within plus or minus .10, with a 99 percent level of confidence. The best estimate of the population proportion is .45. How large a sample is required? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The estimate of the population proportion is to be within plus or minus .10, with a 99 percent level of confidence. The best estimate of the population proportion is .45. How large a sample is required?
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p = 0.45
ME = z*sqrt(pq/n)
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So n = [z/E]^2*pq
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n = [2.5758/0.1]^2*0.45*0.55
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n = [25.758]^2*0.45*0.55
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n = 165 when rounded up
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Cheers,
Stan H.
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