An advertising company has made two television commercials for the same product. They want to see if one commercial is better than the other. They gather 500 people and randomly select 250 to watch commercial A and 250 to watch commercial B. Of those who watched commercial A, 18 said they were highly likely to purchase the product. Of those who watch commercial B, 30 said they were highly likely to purchase the product. Since commercial B does better than A based on an eyeball test, perform a one-tail hypothesis test and show if Commercial B is better at selling the product than A at = 0.05 (please include 4 steps in your work).