Question

In: Statistics and Probability

Listed below are the amounts of net worth​ (in millions of​ dollars) of the ten wealthiest...

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?

268

210

179

167

164

157

145

145

145

145

What is the confidence interval estimate of the population mean _____< μ​? <_______ million ​(Round to one decimal place as​ needed.)

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

A.We are90​% confident that the interval from ________ million to _______ million  million actually contains the true mean net worth of all celebrities.

​(Round to one decimal place as  needed.)

B.We are confident that 90​% of all celebrities have a net worth between ​$______ and ​$____________ million. ​(Round to one decimal place as​ needed.)

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

.

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

A. ​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.

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

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

D. ​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.

Solutions

Expert Solution

Construct a 90​%

confidence interval.

What is the confidence interval estimate of the population mean 149.7< μ​? <195.3 million.

What does the result tell us about the population of all​ celebrities?

A.We are90​% confident that the interval from 149.7 million to 195.3 million  million actually contains the true mean net worth of all celebrities.

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

A. ​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

orchestra answered 1 year ago
Next > < Previous

Related Solutions

Listed below are the amounts of net worth (in millions of dollars) of the ten wealthiest...
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? 241, 195, 188,171,164,154,151,151,151,146 What is the confidence interval estimate of the population mean u? $ __ million< u <$__ milion round to one decimal place as needed
Listed below are the amounts of net worth​ (in millions of​ dollars) of the ten wealthiest...
Listed below are the amounts of net worth​ (in millions of​ dollars) of the ten wealthiest celebrities in a country. Construct a 90​% confidence interval. What does the result tell us about the population of all​ celebrities? Do the data appear to be from a normally distributed population as​ required? 267 198 192 169 163 153 147 147 147 147 What is the confidence interval estimate of the population mean u​?
Listed below are the amounts of net worth​ (in millions of​ dollars) of the ten wealthiest...
Listed below are the amounts of net worth​ (in millions of​ dollars) of the ten wealthiest celebrities in a country. Construct a 95​% confidence interval. What does the result tell us about the population of all​ celebrities? Do the data appear to be from a normally distributed population as​ required? 247247 219219 194194 164164 156156 156156 149149 149149 149149 144144 What is the confidence interval estimate of the population mean muμ​? ​$ millionless than<muμless than<​million ​(Round to one decimal place...
#2. Listed below are the amounts of net worth​ (in millions of​dollars) of the ten wealthiest...
#2. 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? 264 217 191 162 161 152 150 150 150 145 What is the confidence interval estimate of the population mean u ? ​ $------million<μ< $-------million (Round to one decimal place...
1- Listed below are the amounts of net worth​ (in millions of​ dollars) of the ten...
1- Listed below are the amounts of net worth​ (in millions of​ dollars) of the ten wealthiest celebrities in a country. Construct a 9999​% confidence interval. What does the result tell us about the population of all​ celebrities? Do the data appear to be from a normally distributed population as​ required? 251251 199199 187187 162162 162162 157157 146146 146146 141141 141141 What is the confidence interval estimate of the population mean muμ​? ​$nothing millionless than<muμless than<​$nothing million ​(Round to one...
A. Listed below are the amounts (in millions of dollars) collected from parking meters by a...
A. Listed below are the amounts (in millions of dollars) collected from parking meters by a security company in your city in the previous 18 months, alongside the average amounts from another company. These data were used to convict 5 members of the security company in your city of grand larceny. Do the limited data listed here show evidence of stealing by the security​ company's employees – why or why not? Month: 1 2 3 4 5 6 7 8...
Listed below are paired data consisting of amounts spent on advertising (in millions of dollars) and...
Listed below are paired data consisting of amounts spent on advertising (in millions of dollars) and the profits (in millions of dollars). Determine if there is a significant negative linear correlation between advertising cost and profit . Use a significance level of 0.01 and round all values to 4 decimal places. Advertising Cost Profit 3 18 4 22 5 16 6 29 7 24 8 31 9 22 10 29 11 25 Ho: ρ = 0 Ha: ρ < 0...
Listed below are paired data consisting of amounts spent on advertising (in millions of dollars) and...
Listed below are paired data consisting of amounts spent on advertising (in millions of dollars) and the profits (in millions of dollars). Determine if there is a significant positive linear correlation between advertising cost and profit . Use a significance level of 0.01 and round all values to 4 decimal places. Advertising Cost Profit 3 23 4 29 5 28 6 21 7 29 8 32 9 21 Ho: ρ = 0 Ha: ρ > 0 Find the Linear Correlation...
Listed below are paired data consisting of amounts spent on advertising (in millions of dollars) and...
Listed below are paired data consisting of amounts spent on advertising (in millions of dollars) and the profits (in millions of dollars). Determine if there is a significant linear correlation between advertising cost and profit . Use a significance level of 0.01 and round all values to 4 decimal places. Advertising CostProfit 323 422 523 626 723 825 919 1025 1133 Ho: ρ = 0 Ha: ρ ≠ 0 Find the Linear Correlation Coefficient r = Find the p-value p-value...
Listed below are amounts​ (in millions of​ dollars) collected from parking meters by a security service...
Listed below are amounts​ (in millions of​ dollars) collected from parking meters by a security service company(SSC) and other companies during similar time periods. Do the limited data listed here show evidence of stealing by the security service​ company's employees? SCC: 1.4, 1.7, 1.5, 1.6, 1.6, 1.3, 1.5, 1.7, 1.4, 1.7 Other Companies: 1.9, 1.8, 1.5, 1.7, 1.6, 1.8, 1.7, 1.6, 1.8, 1.7 Find the coefficient of variation for each of the two​ samples, then compare the variation. ​(Round to...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT