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You want to obtain a sample to estimate a population proportion. At this point in time,...

You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the population proportion. Your would like to be 99% confident that you estimate is within 0.1% of the true population proportion. How large of a sample size is required?

n =

Do not round mid-calculation. However, use a critical value accurate to three decimal places

You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p∗=82%p∗=82%. You would like to be 99.5% confident that your estimate is within 1.5% of the true population proportion. How large of a sample size is required?

n =



Do not round mid-calculation. However, use a critical value accurate to three decimal places.

Math   Statistics-And-Probability   
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