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Category > Statistics Posted 15 Jun 2017 My Price 7.00

An experimental bumper was designed to reduce damage in low-speed collisions

16.19   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 fleet, 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 α = .05, do the medians differ? (Data are from Floyd G. Willoughby and Thomas W. Lauer, confidential case study.) Downtime

New bumper: 9, 2, 5, 12, 5, 4, 7, 5, 11, 3, 7, 1

Old bumper: 7, 5, 7, 4, 18, 4, 8, 14, 13

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Alpha Geek
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Status NEW Posted 15 Jun 2017 10:06 AM My Price 7.00

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