premise: The median age in the city was 22.1 years. 10.1% of residents were under the age of 18; 56.2% were between the ages of 18 and 24; 16.1% were from 25 to 44; 10.5% were from 45 to 64; and 7% were 65 years of age or older. The gender makeup of the city was 64.3% male and 35.7% female.
hypothesis: under the age of 18 is smaller