Which of the following are correctly worded statements about the variable River_

Question

Which of the following are correctly worded statements about the variable River_List Price given the sample we have? Check all that apply. There may be more than one answer.

Date is here https://www.statcrunch.com/app/index.php?dataid=1288079&groupid=2407

We are 90% confident that the interval (402.754,531.515) covers the population mean list price of condos with a view.

There is a 95% chance that the population mean falls within $77,442 of $467,134.

There is a 90% chance that the population proportion is a value between $402,754 and $531,515.

We are 99% confident that the interval (389.692,544.576) covers the population proportion of condos with a view.

All of the above.

None of the above.

Explanation / Answer

sample mean = 467.1344.

sd = 214.7955

90 % confidence interval = (467.1344. - 1.645 *214.7955/sqrt(32)) ,(467.1344. + 1.645 *214.7955/sqrt(32))

=(404.672370 , 529.59642)

se of 95 % confidence interval = 1.96* *214.7955/sqrt(32)) =74.42284

99% confidence interval -

(467.1344. - 2.576*214.7955/sqrt(32)) ,(467.1344. + 2.576 *214.7955/sqrt(32))

(369.3215 , 564.9472)

none of the above is correct

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

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