Do these data show sufficient evidence to reject the claim that the choice of college major is independent of hand posture? let alpha =0.05

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter10: Matrices
Section10.EA: Extended Application Contagion
Problem 2EA
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In a psychology experiment, 140 students were divided into majors em-
phasizing left-hemisphere (LH) brain skills (e.g. philosophy, physics, and

mathematics) and majors emphasizing right-hemisphere (RH) skills (e.g. art,
music, theater, and dance). They were also classified into one of three groups
on the basis of hand posture (right noninverted (RN), left inverted (LI), and
left noninverted (LN)). The data are as follows:

                            LH                           RH

RN                      89                           29

LI                        5                              4

LN                      5                               8

Do these data show sufficient evidence to reject the claim that the choice of college major is independent of hand posture? let alpha =0.05

 

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