Question 16 1 pts A sample of 60 adults, aged 24 - 29 years, is chosen and their mean serum cholesterol level is found to be 186 milligrams per deciliter with a standard deviation of 40 milligrams per deciliter. Use the table provided to the class to find the critical value that should be used to construct a 98% confidence interval to estimate the mean serum cholesterol level for all adults aged 24 - 29 years