An experimental bumper was designed to reduce damage in low-speed collisions. This bum- per was installed on
Question:
(a) Use Mega- Stat or MINITAB to perform a two-tailed Wilcoxon rank sum test (Mann-Whitney test) at 5 .05.
(b) Perform a two-tailed parametric t test for two independent sample means by using Excel or MegaStat. Do you get the same decision? (Data are from Floyd G. Willoughby and Thomas W. Lauer, confidential case study.)
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Related Book For
Applied Statistics In Business And Economics
ISBN: 9780073521480
4th Edition
Authors: David Doane, Lori Seward
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