- Two Men A And B Who Usually Commute To Work Together Decide To Conduct An Experiment To See Whether One Route Is Faster 1 (21.69 KiB) Viewed 37 times
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Two men, A and B, who usually commute to work together decide to conduct an experiment to see whether one route is faster than the other. The men feel that their driving habits are approximately the same, so each morning for two weeks one driver is assigned to route land the other to route II. The times, recorded to the nearest minute, are shown in the following table. Using this data, find the 99% confidence interval for the true mean ditference between the average travel time for route and the average travel time for route II. Let d = (route 1 travel time)-(route Il travel time). Assume that the populations of travel times are normally distributed for both routes Day M Tu W Th F M Tu W. F Route 29 30 33 34 33 33 28 27 34 Route II 24 32 28 29 28 34 32 30 29 27 Th 25 Copy Data Step 2 of 4: Find the critical value that should be used in constructing the contidence interval. Round your answer to three decimal places.
Two men. A and s, who usually commute to work together decide to conduct an experiment to see whether one route is faster than the other. The men feel that their driving habits are approximately the same, so each morning for two weeks one driver is assigned to route and the other to route II. The times, recorded to the nearest minute, are shown in the following table. Using this data, find the 99% confidence interval for the true mean difference between the average travel time for route and the average travel time for route il Let d = troute travel time)-routell travel time). Assume that the populations of travel times are normally distributed for both routes M Tuw Th Tu Th Route 20 30 33 34 33 33 28 27 34 25 Route Il 24 32 28 29 28 34 32 30 29 27 Day F M w S Copy Data Step 3 of 4: Find the standard deviation of the paired differences to be used in constructing the confidence interval. Round your answer to one decimal place
Two men, A and B who usually commute to work together decide to conduct an experiment to see whether one route is faster than the other. The men feel that their driving habits are approximately the same so each morning for two weeks one driver is assigned to route and the other to route 11. The times recorded to the nearest minute, are shown in the following table. Using this data, find the 99% confidence interval for the true mean difference between the average travel time for route and the average travel time for route II. Let d = route travel time)-route Il travel time). Assume that the populations of travel times are normally distributed for both routes Day M Tu W Th FM To w Th Route 29 30 33 34 33 33 28 27 34 25 Route 11 24 32 28 20 28 34 32 30 29 27 M Copy Data Step 4 of 4: Construct the 99% confidence interval. Round your answers to one decimal piace. Answer woryou can dow 2 Points Keypad Keyboard Shortcut Lower endpoint Upper endpoint