2. A presidential candidate asks a polling organization to conduct a nationwide survey to determine the percentage of potential voters who would vote for him over his rival presidential candidate. Out of 2500 respondents in the sample, 925 said they would vote for him. a. What is the point estimate of the true percentage of potential voters who would vote for him? b. Construct a 95% confidence interval of the true percentage of potential voters who would vote for him. c. If 40% of the potential voters would vote for his rival candidate, is this significantly different from the percentage of potential voters of this candidate based on the constructed 95% confidence interval in item b