Cholesterol levels for a group of women aged 40-49 follow an approximately normal distribution with mean 201.73 milligrams per deciliter (mg/dl). medical guidelines state that women with cholesterol levels above 240 mg/dl are considered to have high cholesterol and about 13.7% of women fall into this category. 1. what is the z-score that corresponds to the top 13.7% (or the 86.3-th percentile) of the standard normal distribution? round your answer to four decimal places.