Q14 College tuition A simple random sample of 40 colleges an

Q14

College tuition: A simple random sample of 40 colleges and universities in New York State has a mean tuition of $30,503 with a standard deviation of $6,372. Construct an 80% confidence interval for the mean tuition for all colleges and universities in New York State. An 80% confidence interval for the mean tuition for all colleges and universities is

Solution

29211.83 <mu< 31794.17