To estimate the portion of voters who plan to vote for Candidate A in an election,of size n from the voters is chosen. The sampling is done with replacement. Letvoters who plan to vote for Candidate A among all voters.a random samplebe the portion ofa. How large does n need to be so that we can obtain a 90% confidence interval with 3%margin of error?b. How large does n need to be so that we can obtain a 99% confidence interval with 3%margin of error?

hate the portion of voters who plan to ate A in an election, 18om sample of size n from the voters is chosen. The sampling is done with replacement. Let be the portion of voters who plan to vote for Candidate A among all voters. a. How large does n need to be so that we can obtain a 90% confidence interval with 3% margin of error? b. How large does n need to be so that we can obtain a 99% confidence interval with 3% margin of error?