The U.S. forest service is considering additional restrictions on the number of vehicles allowed to enter Yellowstone National Park. To assess public reaction, the service asks a random sample of 150 visitors if they favor the proposal. Of these, 89 say Yes. We want to construct a 95% confidence interval to estimate the proportion of all visitors to Yellowstone who favor the proposal, with a margin of error of +/-3%.How many visitors must we sample?

150 visitors

1030 visitors

525 visitors

268 visitors

4120 visitors