MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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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.† Over a period of months, an adult male patient has taken nine blood tests for uric acid. The mean concentration was x = 5.33 mg/dl. The distribution of uric acid in healthy adult males can be assumed to be normal, with ? = 1.79 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.)
A-? is known
B-? is unknown
C-uniform distribution of uric acid
D-n is large
E-normal distribution of uric acid
c)Interpret your results in the context of this problem. MULTIPLE CHOICE
A-We are 5% confident that the true uric acid level for this patient falls within this interval.
B-We are 95% confident that the true uric acid level for this patient falls within this interval.
C-The probability that this interval contains the true average uric acid level for this patient is 0.05.
D-The probability that this interval contains the true average uric acid level for this patient is 0.95.
(d)Find the sample size necessary for a 95% confidence level with maximal margin of error E = 1.08 for the mean concentration of uric acid in this patient's blood. (Round your answer up to the nearest whole number.)
___ blood tests
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