Question: An experimental bumper was designed to reduce damage in low-speed collisions. This bumper was installed on an experimental group of vans in a large feet,

An experimental bumper was designed to reduce damage in low-speed collisions. This bumper was installed on an experimental group of vans in a large feet, but not on a control group. At the end of a trial period, accident data showed 12 repair incidents for the experimental group and 9 repair incidents for the control group. The vehicle downtime (in days) per repair incident is shown. Research question: At Î± = .05, do the medians differ? (Data are Downtime from Floyd G. Willoughby and Thomas W. Lauer, confidential case study.)

New bunper: 9,2, 5, 12, 5,4,7, 5, 11,3,7, 1 Old buanper 7,5, 7,4, 18, 4, 8, 14, 13

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