Bob and Tom are paper investors. They each buy stocks they think will rise in value and
Question:
(a) At α = .05, is there a difference in the medians (assume these are samples of Bob's and Tom's stock-picking skills)? Use MegaStat or a similar computer package for the Wilcoxon rank sum test (Mann-Whitney test) calculations.
(b) Perform a two-tailed parametric t test for two independent sample means by using Excel or MegaStat. Do you get the same decision?
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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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