A sample poll of 100 voters chosen at random from all voters in a given district indicated that 55% of them were in favor of a particular candidate.Find confidence limits for the proportion of all the voters in favor of this candidate.
a.95%
b.99.73%
1 answer
(a) In a poll of 10,000 voters selected at random from all voters in a certain district, it is found that 5,180 voters are in favor of particular candidate. Test the null hypothesis that the proportion of all the voters in the district, who favor the candidate is equal to or less than 50% against the alternative that it is greater than 50%. Use a 0.05 level of significance.