The Serum Cholesterol Levels for Men in One Age Group

Multiple Choice

The serum cholesterol levels for men in one age group are normally distributed with a mean of 177.9 and a standard deviation of 40.5. All units are in mg/100 mL. Find the two levels that separate the top 9% and the bottom 9%.

A) 161.3 mg/100mL and 194.5 mg/100mL
B) 107.4 mg/100mL and 248.4 mg/100mL
C) 164.9 mg/100mL and 190.86 mg/100mL
D) 123.6 mg/100mL and 232.2 mg/100mL