Chest circumferences of adult males are known to follow a Normal distribution with mean 40 inches...

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Chest circumferences of adult males are known to follow a Normal distribution with mean 40 inches...

Chest circumferences of adult males are known to follow a Normal distribution with mean 40 inches and standard deviation 2.1 inches. Suppose we collect a random sample of 66 adult males. What is the probability that the average chest circumference of this group will be exactly 39.97 inches?

Select one:

a. We cannot answer this question with the information given.

b. 0.9400

c. 0.8264

d. 0.1736

e. 0.0000

math Statistics-And-Probability

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Answer 1

Answer #1

X;= Chert. circumferencen of adult mater ith adult males X; ~ N(40 , 2:12) ŽE x; ~ N(40, 2:12 :) ac how PCK = 39.97 ) = 0 Xir Please DO UPVOTE

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Answer 2

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Chest circumferences of adult males are known to follow a Normal distribution with mean 40 inches...

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