SOLUTION: Find the minimum sample size you should use to assure that your estimate of p hat will be within the required margin of error around the population p. Assume the Margin of error is
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Question 354373: Find the minimum sample size you should use to assure that your estimate of p hat will be within the required margin of error around the population p. Assume the Margin of error is 0.08 with a confidence level of 95%. From a prior study, p hat is estimated to be 0.2. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Find the minimum sample size you should use to assure that your estimate of p hat will be within the required margin of error around the population p. Assume the Margin of error is 0.08 with a confidence level of 95%. From a prior study, p hat is estimated to be 0.2.
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Since E = z*sqrt(pq/n)
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n = [z/E]^2*pq
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n = [1.96/0.08]^2*0.2*0.8
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n = 97 when rounded up
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Cheers,
Stan H.
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