The corporate headquarters of Bank.com, an online banking company, is located in downtown Philadelphia. The director of human resources is making a study of the time it takes employees to get to work. The city is planning to offer incentives to each downtown employer if they will encourage their employees to use public transportation. Below is a listing of the time to get to work this morning according to whether the employee used public transportation or drove a car.

a. Find the median and the first and third quartiles for the time it took employees using public transportation. Develop a box plot for the information.

b. Find the median and the first and third quartiles for the time it took employees who drove their own vehicle. Develop a box plot for the information.

c. Compare the times of the two groups.

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Public Transportation 31 32 33 35 36 23 25 25 30 31 37 42 Private 37 38 38 38 39 32 32 33 34 37 40 44