If the uric acid values in normal adult males areapproximately normally distributed with a mean andstandard deviation of 5.7 and 1 mg percent, respectively,find the probability that a sample of size 10 will yield amean:Greater than 6.5 C. Between 5 and 6Less than 5The same survey database cited in exercise 4.3.1 (A-5) shows that 32 percent of U.S. adults indicated thatthey have been tested for HIV at some point in theirlife. Consider a simple random sample of 15 adultsselected at that time. Find the probability that thenumber of adults who have been tested for HIV in thesample would be:(a) Three (b) Less than five(c) Between five and nine, inclusive(d) Find the probability that the number of adults whohave not been tested for HIV in the sample would be: Sixor more(e) Find the mean and variance of the number of peopletested for HIV in samples of size 15.

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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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Let, X has a normal distribution with a mean of 60 and a standard deviation of 4. The z-value for x = 53 is?
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A person's blood glucose level and diabetes are closely related. Let x be a random variable measured in milligrams of glucose per deciliter (1/10 of a liter) of blood. Suppose that after a 12-hour fast, the random variable x will have a distribution that is approximately normal with mean μ = 88 and standard deviation σ = 21. Note: After 50 years of age, both the mean and standard deviation tend to increase. For an adult (under 50) after a 12-hour fast, find the following probabilities. (Round your answers to four decimal places.) (a) x is more than 60(b) x is less than 110(c) x is between 60 and 110(d) x is greater than 140 (borderline diabetes starts at 140)
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If the uric acid values in normal adult males are approximately normally distributed with a mean and standard deviation of 5.7 and 1 mg percent, respectively, find the probability that a sample of size 10 will yield a mean: Greater than 6.5 C. Between 5 and 6 Less than 5