DATAfile: Tobacco Fires You may need to use the appropriate appendix table or technology to answer this question. The me

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Datafile Tobacco Fires You May Need To Use The Appropriate Appendix Table Or Technology To Answer This Question The Me 1 (110.77 KiB) Viewed 22 times

DATAfile: Tobacco Fires You may need to use the appropriate appendix table or technology to answer this question. The mean cost to repair the smoke and fire damage that results from home fires of all causes is $11,389. How does the damage that results from home fires caused by careless use of tobacco compare? The DATAfile named TobaccoFires provides the cost to repair smoke and fire damage associated with a sample of 55 fires caused by careless use of tobaco products. Smoke and Fire Cost 17,748 18,429 17,312 17,622 23,149 18,340 23,669 23,006 18,378 14,160 21,653 18,060 20,043 13,859 22,401 14,970 15,111 22,320 21,159 15,628 19,082 13,832 20,124 17,819 16,860 19,042 16,812 14,610 16,496 21,287 17,721 20,229 23,942 18,937 21,697 15,098 18,611 22,137 19,223 20,527 16,830 19,854 20,499 22,607 13,561 22,031 22,128 23,200 23,221 15,096 15,978 20,768 22,036 17,678 23,910 Using past years' data, the population standard deviation can be assumed known with o = $3,027. What is the 95% confidence interval estimate of the mean cost to repair smoke and fire damage that results from home fires caused by careless use of tobacco? (Round your answer to the nearest dollar.) $ to $ How does this compare with the mean cost to repair the smoke and fire damage that results from home fires of all causes? The average cost to repair the smoke and fire damage that result from home fires of all causes is ---Select--- the 95% confidence interval for the mean cost of fires resulting from tobacco. This shows the mean cost of fires resulting from tobacco is --Select--than the average cost to repair the smoke and fire damage that results from home fires due to causes. [-70.55 Points] DETAILS ASWSBE13 8.E.014. MY NOTES ASK YOUR TEACHER PRACTICE AN You may need to use the appropriate appendix table or technology to answer this question. A simple random sample with n = 53 provided a sample mean of 24.5 and a sample standard deviation of 4.4. (Round your answers to one decimal place.) (a) Develop a 90% confidence interval for the population mean. to (b) Develop a 95% confidence interval for the population mean. to (c) Develop a 99% confidence interval for the population mean. to (d) What happens to the margin of error and the confidence interval as the confidence level is increased? O As the confidence level increases, there is a larger margin of error and a wider confidence interval. As the confidence level increases, there is a smaller margin of error and a more narrow confidence interval. O As the confidence level increases, there is a larger margin of error and a more narrow confidence interval. O As the confidence level increases, there is a smaller margin of error and a wider confidence interval.