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# Cholesterol The level of cholesterol in the blood for all men aged 20 to 34 follows a

ISBN: 9781464108730 488

## Solution for problem 31 Chapter 10.2

The Practice of Statistics | 5th Edition

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Problem 31

Cholesterol The level of cholesterol in the blood for all men aged 20 to 34 follows a Normal distribution with mean 188 milligrams per deciliter (mg/dl) and standard deviation 41 mg/dl. For 14-year-old boys, blood cholesterol levels follow a Normal distribution with mean 170 mg/dl and standard deviation 30 mg/dl. Suppose we select independent SRSs of 25 men aged 20 to 34 and 36 boys aged 14 and calculate the sample mean cholesterol levels x M and x B. (a) What is the shape of the sampling distribution of x M x B? Why? (b) Find the mean of the sampling distribution. Show your work. (c) Find the standard deviation of the sampling distribution. Show your work.

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##### ISBN: 9781464108730

The Practice of Statistics was written by and is associated to the ISBN: 9781464108730. The answer to “Cholesterol The level of cholesterol in the blood for all men aged 20 to 34 follows a Normal distribution with mean 188 milligrams per deciliter (mg/dl) and standard deviation 41 mg/dl. For 14-year-old boys, blood cholesterol levels follow a Normal distribution with mean 170 mg/dl and standard deviation 30 mg/dl. Suppose we select independent SRSs of 25 men aged 20 to 34 and 36 boys aged 14 and calculate the sample mean cholesterol levels x M and x B. (a) What is the shape of the sampling distribution of x M x B? Why? (b) Find the mean of the sampling distribution. Show your work. (c) Find the standard deviation of the sampling distribution. Show your work.” is broken down into a number of easy to follow steps, and 117 words. The full step-by-step solution to problem: 31 from chapter: 10.2 was answered by , our top Statistics solution expert on 03/19/18, 03:52PM. Since the solution to 31 from 10.2 chapter was answered, more than 220 students have viewed the full step-by-step answer. This full solution covers the following key subjects: . This expansive textbook survival guide covers 44 chapters, and 1409 solutions. This textbook survival guide was created for the textbook: The Practice of Statistics, edition: 5.

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