Suppose that the height of Asian males aged 35–44 in the United States is normal

Question

Suppose that the height of Asian males aged 35–44 in the United States is normally distributed with a standard deviation of 3 in. Jeremy takes a simple random sample of 16 such men and notices that none of them are unusually tall or unusually short. He then calculates the average of the sample to be 69 in. and is planning on using this to find a 95% z?confidence interval for the true mean height.

Can Jeremy use this information to find the z?confidence interval? Complete the following sentences.

The population distribution is_________________ (Options: Irrelevant, unknown, normal , skewed)

The sample______________ (Options: size is irrelevant, size is large enough, contains one or more outliers)

and the population standard deviation is _________________(options: irrelevant, unknown, too big, too small, known)

Therefore,___________(Options, yes all the requirements are met, or no, not all the requirement are met)

Explanation / Answer

To answer whether Can Jeremy use this information to find the z?confidence interval,

The population distribution is normal.

The sample size is irrelevant and the population standard deviation is known.

Therefore, yes all the requirements are met.

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.