Question

In: Statistics and Probability

2. Assume the cholesterol levels of adult American women can be described by a Normal distribution...

2. Assume the cholesterol levels of adult American women can be described by a Normal distribution with a mean of 196 mg/dL and a standard deviation of 27 mg/dL.

a) What percent of adult women do you expect to have cholesterol levels over 200 mg/dL

b) Whatpercentofadultwomendoyouexpecttohavecholesterollevelsbetween170and200 mg/dL?

c) Above what value are the highest 15% of women’s cholesterol levels?

d) What cholesterol level represents the 98th percentile?

Solutions

Expert Solution


Related Solutions

The cholesterol levels of an adult can be described by a normal model with a mean...
The cholesterol levels of an adult can be described by a normal model with a mean of 187 ​mg/dL and a standard deviation of 28 What percent of adults do you expect to have cholesterol levels over 210 ​mg/dL? (round two decimal places) ​c) What percent of adults do you expect to have cholesterol levels between 150 and 160 mg/dL?(round two decimal places) d) Estimate the interquartile range of cholesterol levels. IQR= ____ (round to nearest integer) e)Above what value...
The cholesterol levels of an adult can be described by a normal model with a mean...
The cholesterol levels of an adult can be described by a normal model with a mean of 188 ​mg/dL and a standard deviation of 26 ​b) What percent of adults do you expect to have cholesterol levels over 190mg/dL? ​(Round to two decimal places as​ needed.) ​c) What percent of adults do you expect to have cholesterol levels between 160 and 170 mg/dL? ​(Round to two decimal places as​ needed.) ​d) Estimate the interquartile range of cholesterol levels. IQRequals= ​(Round...
Assume the cholesterol levels of adult American women are normally distributed with a mean of 190...
Assume the cholesterol levels of adult American women are normally distributed with a mean of 190 mg/dL and a standard deviation of 26 mg/dL. What percent of adult women do you expect to have cholesterol levels of at least 200 mg/dL ? (Round to tenths)    b What percent of adult women do you expect to have cholesterol levels between 150 and 170 mg/dL ? (Round to tenths) Above what value are the top 15% of women’s cholesterol levels ?...
Cholesterol levels for a group of women aged 50-59 follow an approximately normal distribution with mean...
Cholesterol levels for a group of women aged 50-59 follow an approximately normal distribution with mean 216.57 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 29.6% of women fall into this category. 1. What is the Z-score that corresponds to the top 29.6% (or the 70.4-th percentile) of the standard normal distribution? Round your answer to three decimal places. 2. Find the standard deviation of...
Cholesterol levels for a group of women aged 30-39 follow an approximately normal distribution with mean...
Cholesterol levels for a group of women aged 30-39 follow an approximately normal distribution with mean 190.14 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 9.3% of women fall into this category. 1. What is the Z-score that corresponds to the top 9.3% (or the 90.7-th percentile) of the standard normal distribution? Round your answer to three decimal places. 2. Find the standard deviation of...
The distribution of cholesterol levels in a boy is approximately normal with a mean of 170...
The distribution of cholesterol levels in a boy is approximately normal with a mean of 170 and a standard deviation of 30. Levels above 200 require attention. What is the probability of a boy with a cholesterol between 160 and 205?
Suppose the heights of adult women follow a normal distribution with a mean of 65.5 inches...
Suppose the heights of adult women follow a normal distribution with a mean of 65.5 inches and a standard deviation of 2.75 inches. Determine the following: 1.) What percent of adult women are taller than 6 feet (72 inches)? 2.) What percent of adult women are taller than 5 feet (60 inches)? 3.) What percent of adult women are between 60 and 72 inches tall? 4.) Because of the high cost of materials, the company has decided that they cannot...
The distribution of heights of adult American men is approximately normal with mean of 69 inches...
The distribution of heights of adult American men is approximately normal with mean of 69 inches in standard deviation of 2.5 inches. a. what is the probability that a selected male is either less than 68 or greater than 70 inches b. find the probability that a selected male is between 69 and 73 inches
Assume that the total cholesterol levels for adults are normally distributed with mean cholesterol level of
Assume that the total cholesterol levels for adults are normally distributed with mean cholesterol level of 51.6 mg/dL and standard deviation14.3 mg/dL. Find the probability that an individual will have a cholesterol level greater than 58 mg/dL.
Assume that the cholesterol levels for adults are normally distributed with mean cholesterol level of 51.5...
Assume that the cholesterol levels for adults are normally distributed with mean cholesterol level of 51.5 mg/dL and standard deviation of 14.3 mg/dL. Find the probability that an individual will have a cholesterol level a.) 60 mg/dL, at least b.) 40 mg/dL, at most c.) Between 40 and 60 mg/dL PLZ show work :)
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT