You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p=25% You would like to be 98% confident that your esimate is within 0.5% of the true population proportion. How large of a sample size is required? n =

Hint: Shouldn't the answer be a WHOLE NUMBER.

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