A man who moves to a new city sees that there are two routes he could take to work. A neighbor who has lived there a lon

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A Man Who Moves To A New City Sees That There Are Two Routes He Could Take To Work A Neighbor Who Has Lived There A Lon 1 (23.12 KiB) Viewed 23 times

A man who moves to a new city sees that there are two routes he could take to work. A neighbor who has lived there a long time tells him Route A wil average 5 minutes faster than Route B The man decides to experiment . Each day he flips a coln to determine which way to go, driving each route 20 days. He finds that Route A takes an average of 48 minutes, with standard deviation 1 minute and Route Btakes an average of 50 minutes, with standard deviation 5 minutes. Histograms of travel times for the routes are roughly symmetric and show no outler Complete parts and b. a) Find a 95% confidence interval for the difference between the Route B and Routo A commuting times. (-) The confidence interval is (C0. (Round to two decimal places as needed b) Should the man believe the old timer's claim that he can save an average of 6 minutes a day by way driving Route A? Explain becaune the confidence interval for the difference 5 minutes contano does not contain