The vice president of operations at Busch Gardens knows that 70 percent of the patrons like roller-coaster rides. Therefore, he wishes to have an acceptable margin of error of no more than +/- 3 percent and wants to be 95 percent confident about the attitudes toward the "Gwazi" roller coaster. What sample size would be required for a personal interview study among on-site patrons? SHOW YOUR WORK FOR CREDIT.