The normal condition for sample proportions

According to the admissions director of a certain college, approximately $11\%$11, percent of the $250$250 freshmen admitted had applied using the early decision option. Suppose that we took random samples of $20$20 freshmen from this population and computed the proportion $\hat p$p, with, hat, on top of freshmen in each sample who had applied using the early decision option. We can assume the admissions director's claim is true.