2) The personnel department of a large corporation wants to estimate the family dental expenses of its employees. A random sample of 8 employees reveals the following family dental expenses ($) for the preceding year: 15, 17, 18,13, 14, 16, 17, 14. Set up a 95% confidence interval estimate of the mean family dental expenses for all employees.

Formula______________________, Critical Values_________________ C.I.E. _________ _________