The president of Tastee Inc., a babyfood producer, claims that her company’s product is superior to that of her leading competitor because babies gain weight faster with her product. As an experiment, 40 healthy newborn infants are randomly selected. For two months, 15 of the babies are fed Tastee baby food and the other 25 are fed the competitor’s product. Each baby’s weight gain (in ounces) was recorded. If we use weight gain as our criterion, can we conclude that Tastee baby food is indeed superior? (This exercise is identical to Exercise 13.17 except for the data.)