Chapter 5, Problem 53E

Cholesterol Assume the cholesterol levels of adult American women can be described by a Normal model with a mean of 188 mg/dL and a standard deviation of 24.

1. a) Draw and label the Normal model.
2. b) What percent of adult women do you expect to have cholesterol levels over 200 mg/dL?
3. c) What percent of adult women do you expect to have cholesterol levels between 150 and 170 mg/dL?
4. d) Estimate the IQR of the cholesterol levels.
5. e) Above what value are the highest 15% of women’s cholesterol levels?