Question: In a 1978 sample of 17,554 17-yr old students, 5617 had at least one parent who was a college graduate. In a 2004 sample of 2158 17-yr old students, 1014 had at least one college graduate parent.

a. Give a 99% confidence interval for the increase in the proportion o between 1978 and 2004 and state it in terms of the problem.