How large a sample should be taken to estimate a population proportion to within 0.01 with 90% confidence if the proportion is known to be around 5%?

Name: How large a sample should be taken to estimate a population proportion to within 0.01 with 90% confidence if the proportion is known to be around 5%?
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The Answer of How large a sample should be taken to estimate a population proportion to within 0.01 with 90% confidence if the proportion is known to be around 5%?

How Large a Sample Should Be Taken to Estimate a Population