Cholesterol The level of cholesterol in the blood forall men aged 20 to 34 follows a Normal distributionwith mean 188 milligrams per deciliter (mg/dl) andstandard deviation 41 mg/dl. For 14-year-old boys,blood cholesterol levels follow a Normal distributionwith mean 170 mg/dl and standard deviation 30 mg/dl.Suppose we select independent SRSs of 25 menaged 20 to 34 and 36 boys aged 14 and calculate thesample mean cholesterol levels M and XB.What is the shape of the sampling distribution ofXM - XB? Why?Find the mean of the sampling distribution. Showyour work.Find the standard deviation of the sampling distribu-tion. Show your work.

Suppose μM, μB are the population mean levels of cholesterol in the blood for all men aged 20 to 34…

Answered: Cholesterol The level of cholesterol in…

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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The results of a common standardized test used in physchology research is designed so that the population mean is 155 and the standard deviation is 30. A subject earns a score of 98. What is the z-score for this raw score?
It has been found that with the standard dosage of a drug, the change in people’s uric acid levelis normally distributed with a mean of 240 and a standard deviation of 60. What proportionof people receiving the standard dosage of this drug experience changes in uric acid levelbetween 210 and 270?
The annual per capita consumption of oranges (in pounds) in the United States can be approximated by a normal distribution. The mean annual per capita of oranges is 19.2 with a standard deviation of 4 pounds. what annual per capita consumption of oranges represents the 5th percentile?
Assume the average amount of caffeine consumed daily by adults is normally distributed with a mean of 260 mg and a standard deviation of 48 mg. In a random sample of 600 adults, how many consume at least 320 mg of caffeine daily?
Assume blood glucose levels are normally distributed with a mean of 80 mg/dL and a standard deviation of 35 mg/dL. The normal range for blood glucose is considered to be 65-120 mg/dL. Values in the range 120-180 mg/dLare considered high and values greater than 180 mg/dL considered abnormal. what is the percentile for someone with a value of 135 mg/dL
According to a recent report the battery life for a new line of laptop computers has a mean of 9 hours with a standard deviation of 2.4 hours. If battery life is normally distributed what percentage of new laptops will last between 8 and 11 hours on a single charge?
The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 3.5 miles per gallon. What proportion of hybrids gets over 61 miles per gallon?
Total cholesterol in children aged 10 to 15 years of age is assumed to follow a normal distribution with a mean of 191 and a standard deviation of 22.4. what proportion of children 10 to 15 years of age would be classified as hyperlipidermic (assume that hyperlipidermia is defined as a total cholesterol level over 200?
The scores on a standardized test are normally distributed with a mean of 120 and standard deviation of 5. What test score is 1.1 standard deviations above the mean?
Bone mineral density (BMD) is a measure of bone strength. Studies show that BMD declines after age 45. The impact of exercise may increase BMD. A random sample of 59 women between the ages of 41 and 45 with no major health problems were studied. The women were classified into one of two groups based upon their level of exercise activity: walking women and sedentary women. The 39 women who walked regularly had a mean BMD of 5.96 with a standard deviation of 1.22. The 20 women who are sedentary had a mean BMD of 4.41 with a standard deviation of 1.02. Which of the following inference procedures could be used to estimate the difference in the mean BMD for these two types of women
The gas mileage for a new model of car is normally distributed, with a standard deviation of 3.5 miles per gallon. If only 4% of the cars have a gas mileage of above 20 mpg, what is the mean of the distribution
Suppose we know that the aspirin content of aspirin tablets follows a Normal distribution with standard deviation of o= 5 mg.

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