Probability and Statistics for Engineering and the Sciences
9th Edition
ISBN: 9781305251809
Author: Jay L. Devore
Publisher: Cengage Learning
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Chapter 6.1, Problem 6E
Urinary angiotensinogen (AGT) level is one quantitative indicator of kidney
An appropriate probability plot supports the use of the lognormal distribution (see Section 4.5) as a reasonable model for urinary AGT level (this is what the investigators did).
- a. Estimate the parameters of the distribution. [Hint. Remember that X has a lognormal distribution with parameters μ and σ2 if ln(X) is
normally distributed with mean μ and variance σ2.] - b. Use the estimates of part (a) to calculate an estimate of the
expected value of AGT level. [Hint: What is E(X)?]
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Chapter 6 Solutions
Probability and Statistics for Engineering and the Sciences
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