1.95 Do you have enough "good cholesterol"? High-density lipoprotein (HDL) is sometimes called the"good cholesterol" because high values are associatedwith a reduced risk of heart disease. According to theAmerican Heart Association, people over the age of20 years should have at least 40 milligrams per deciliter(mg/dl) of HDL cholesterol.33 U.S. women aged 20 andover have a mean HDL of 55 mg/dl with a standarddeviation of 15.5 mg/dl. Assume that the distribution isNormal.(a) What percent of women have low values of HDL(40 mg/dl or less)?(b) HDL levels of 60 mg/dl and higher are believedto protect people from heart disease. What percent ofwomen have protective levels of HDL?Clovere2707(c) Women with more than 40 mg/dl but less than 60 mg/dlof HDL are in the intermediate range, neither very good orvery bad. What proportion are in this category?C2Iс

Answered: Image /qna-images/answer/5622370c-7435-4f66-af9a-732194b9849b.jpg

Answered: you have enough "good cholesterol":…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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I need help solving this problem in R. The size of the left upper chamber of the heart is one measure of cardiovascular health. When the upper left chamber is enlarged, the risk of heart problems is increased. The paper ("Left atrial size increases with body mass index in children")[https://www.ncbi.nlm.nih.gov/pubmed/19147240] (International Journal of Cardiology [2009]) described a study in which the left atrial size was measured for a large number of children age 5 to 15 years. Based on this data, the authors concluded that for healthy children, the left atrial diameter was approximately normally distributed with a mean of 26.4 mm and a standard deviation of 4.2 mm. i) Use `plotDist` to draw the probability density function of the left atrial diameter. ii) Generate 50 sample measurements of the left atrial diameters and plot the measurements using a histogram. iii) Approximately what proportion of healthy children have left atrial diameters less than 23.5 mm?
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Overproduction of uric acid in the body can be an indication of cell breakdown. This may be an advance indication of illness such as gout, leukemia, or lymphoma.t Over a period of months, an adult male patient has taken nine blood tests for uric acid. The mean concentration was x = 5.41 mg/dl. The distribution of uric acid in healthy adult males can be assumed to be normal, with o = 1.75 mg/dl. (a) Find a 95% confidence interval for the population mean concentration of uric acid in this patient's blood. What is the margin of error? (Round your answers to two decimal places.) lower limit upper limit margin of error (b) What conditions are necessary for your calculations? (Select all that apply.) normal distribution of uric acid On is large O o is unknown O uniform distribution of uric acid O o is known (c) Interpret your results in the context of this problem. The probability that this interval contains the true average uric acid level for this patient is 0.95. The probability that this…
first picture is the background information
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