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Statistics / Elementary Statistics: Picturing the World 6 / Chapter 5.2 / Problem 20

Elementary Statistics: Picturing the World | 6th Edition | ISBN: 9780321911216 | Authors: Ron Larson; Betsy Farber

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Using Normal Distributions In Exercises 1720, answer the questions about the specified

Chapter 5, Problem 20

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QUESTION:

Using Normal Distributions In Exercises 1720, answer the questions about the specified normal distribution.Cholesterol Use the normal distribution in Exercise 16.(a) What percent of the women have a total cholesterol level less than217 milligrams per deciliter of blood?(b) Out of 200 randomly selected U.S. women in the 3544 age group, abouthow many would you expect to have a total cholesterol level greaterthan 185 milligrams per deciliter of blood?

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QUESTION:

Using Normal Distributions In Exercises 1720, answer the questions about the specified normal distribution.Cholesterol Use the normal distribution in Exercise 16.(a) What percent of the women have a total cholesterol level less than217 milligrams per deciliter of blood?(b) Out of 200 randomly selected U.S. women in the 3544 age group, abouthow many would you expect to have a total cholesterol level greaterthan 185 milligrams per deciliter of blood?

ANSWER:

Step 1 of 4

(a) The z-score is given by,

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