Question

In a random sample of 24 people, the mean commute time to work was 32 minutes and t andard deviation was 7 minutes. Assume the population is normally debuted and use a distribution to constructa 99% confidence interval for the population mean what is the margin of error of Interpret the results The concerteval for the population means Round tone decimal places needed) The margin of error of Round to ore decimal place as needed) Interpret the results DAW concertante d e communist the bounds of the confidence OB. a large sample of people are an approximately of them will have comme ime between the bounds of the confidence interval OC With 90% confidence it can be said that the population mean commute time is between the bounds of the confidence interval OD. Gan be said that of people have a com m e between the bounds of the confidence interval

Answer 1

4:24 , < = 32, 3, $ = 1.1 ; c = 1 . = 0-34 als0.99 0-01 = 24-1 = 23 cole = 0.005 L talkidf = t 0.005,23 = 2- 807 gay. confidence Interval for population mean. - *= tolo = 32-3 + 2-807 ** 124 = 32:3 4.068 = 2 8-23, 36 36 erod 14. mara 494 c7 + (1282) 16:41). . The margin of end of this =(4-1 ] Aus? He with 99% confidence , it can be said that the population mean commute time is between the bounder of the confidence Interval.