Listed below are the amounts of net worth (in millions of dollars) of the ten wealthiest celebrities in a country. Construct a 90% confidence interval. What does the result tell us about the population of all celebrities? Do the data appear to be from a normally distributed population as required? 269 204 178 162 161 157 157 157 155 152 What is the confidence interval estimate of the population mean μ? $nothing million<μ<$nothing million (Round to one decimal place as needed.) What does the result tell us about the population of all celebrities? Select the correct choice belowand, if necessary, fill in the answer box(es) to complete your choice. A. We are confident that 90% of all celebrities have a net worth between $nothing million and $nothing million. (Round to one decimal place as needed.) B. Because the ten wealthiest celebrities are not a representative sample, this doesn't provide any information about the population of all celebrities. C. We are 90% confident that the interval from $nothing million to $nothing million actually contains the true mean net worth of all celebrities. (Round to one decimal place as needed.) Do the data appear to be from a normally distributed population as required? A. Yes, because the pattern of the points in the normal quantile plot is reasonably close to a straight line. B. No, but the points in the normal quantile plot lie reasonably close to a straight line and show some systematic pattern that is a straight line pattern. C. Yes, but the points in the normal quantile plot do not lie reasonably close to a straight line or show a systematic pattern that is a straight line pattern. D. No, because the points lie reasonable close to a straight line, but there is a systematic pattern that is not a straight line pattern.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Listed below are the amounts of net worth (in millions of dollars) of the ten wealthiest celebrities in a country. Construct a

90%

confidence interval. What does the result tell us about the population of all celebrities? Do the data appear to be from a normally distributed population as required?

269

204

178

162

161

157

155

152

What is the confidence interval estimate of the population mean

μ?

$nothing

million<μ<$nothing

million

(Round to one decimal place as needed.)

What does the result tell us about the population of all celebrities? Select the correct choice belowand, if necessary, fill in the answer box(es) to complete your choice.

We are confident that

90%

of all celebrities have a net worth between

$nothing

million and

$nothing

million.

(Round to one decimal place as needed.)

Because the ten wealthiest celebrities are not a representative sample, this doesn't provide any information about the population of all celebrities.

We are

90%

confident that the interval from

$nothing

million to

$nothing

million actually contains the true mean net worth of all celebrities.

(Round to one decimal place as needed.)

Do the data appear to be from a normally distributed population as required?

Yes, because the pattern of the points in the normal quantile plot is reasonably close to a straight line.

No, but the points in the normal quantile plot lie reasonably close to a straight line and show some systematic pattern that is a straight line pattern.

Yes, but the points in the normal quantile plot do not lie reasonably close to a straight line or show a systematic pattern that is a straight line pattern.

No, because the points lie reasonable close to a straight line, but there is a systematic pattern that is not a straight line pattern.

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