Determine the margin of error for a 98% confidence interval to estimate the population proportion with a sample proportion equal to 0.80 for the following sample sizes. a. n=100 b.n= 180 c. n=250 Click the icon to view a portion of the Cumulative Probabilices for the Standard Normal Distribution table, a. The margin of error for a 98% confidence interval to estimate the population proportion with a sample proportion equal to 0.80 and sample size n=100 is 086 (Round to three decimal places as needed.)