You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p* = 18%%. You would like to be 99.5% confident that your estimate is within 4% 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 , . Two samples are taken with the following numbers of successes and sample sizes ri = 32 12 = 37 n1 = 80 n2 : 71 Find a 85% confidence interval, round answers to the nearest thousandth. J