ls there evidence, at 5% level, that the choice of Phone Company is independent of the type of worker?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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A survey among the workers in a large manufacturing company was taken, in order to find
out from which company the workers had purchased their mobile phones, and to find out
whether the choice of mobile phone company was related to the type of worker. The results
are shown in the table below.

ls there evidence, at 5% level, that the choice of Phone Company is independent of the type of
worker?

Company of mobile phone
Yellow
Туре of
workers
Pink
Green
Blue
Total
Executive
15
6
6
33
Middle
21
25
8
8
62
management
Secretarial
33
36
11
85
Labourer
40
29
12
8
89
Total
109
96
37
27
269
00
Transcribed Image Text:Company of mobile phone Yellow Туре of workers Pink Green Blue Total Executive 15 6 6 33 Middle 21 25 8 8 62 management Secretarial 33 36 11 85 Labourer 40 29 12 8 89 Total 109 96 37 27 269 00
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