SOLUTION: College Tuition: A simple random of 35 colleges and universities in the united states has a mean tuition of $18,702 with a standard deviation of $10,653. Construct a 95% confidence

Question 1190314: College Tuition: A simple random of 35 colleges and universities in the united states has a mean tuition of $18,702 with a standard deviation of $10,653. Construct a 95% confidence interval for the mean tuition for all colleges and universities in the United Sates.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
95% half-interval=t(0.975, df=34)*10653/sqrt(35). Use the t-distribution, because the sd used is from the sample itself.
=2.032*1800.69=3658.99=$3659
the interval is ($15043, $22361)
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