3350 Discussion Board 6.1: Normal Probability Distributions

In a randomly selected sample of women ages 20-34, the mean total cholesterol level is185 milligrams per deciliter with a standard deviation of 40.2 milligrams per deciliter. Assume the total cholesterol levels are normally distributed. Find the highest total cholesterol level a woman in this 20-34 age group can have and still be in the bottom 5%?