A Marketing Firm Is Interested to Know Whether the Median

Multiple Choice

A marketing firm is interested to know whether the median age of college students is 21 years. A sample of 80 college students is taken. Thirty of the students were under 21, 45 of the students were over 21, and 10 were 21 years old. The conclusion is that

A) the median age of college students is significantly different from 21.
B) the median age of college students is not significantly different from 21.
C) the median age of college students is significantly older than from 21.
D) the median age of college students is significantly younger than from 21.