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Chapter 7: Q.29 (page 429)

An unknown distribution has a mean of 25 and a standard deviation of six. Let X = one object from this distribution. What is the sample size if the standard deviation of 危X is 42?

Short Answer

Expert verified

The sample size is49.

Step by step solution

01

Given Information

An unknown distribution has a mean of 25 and a standard deviation of six.

02

Explanation

The sample size if the standard deviation of 危X=n蟽x

Therefore, the sample size is:

42=n脳6

n=426

role="math" localid="1648890741186" n=7

n=49

Therefore, the sample size is49

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