A random sample of residents from various income brackets were asked their opinion on tax reform for the country of Guyana. The data so gathered were analyzed by a statistician and the results he obtained using MINITAB are shown below: Expected counts are printed below observed counts Low Middle High 14 Total 26 (30.67) For 75 115 (51.11) (33.22) Against 60 95 105 260 (69.33) (115.56) (**)
A random sample of residents from various income brackets were asked their opinion on tax reform for the country of Guyana. The data so gathered were analyzed by a statistician and the results he obtained using MINITAB are shown below: Expected counts are printed below observed counts Low Middle High 14 Total 26 (30.67) For 75 115 (51.11) (33.22) Against 60 95 105 260 (69.33) (115.56) (**)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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please answer c.
Transcribed Image Text:A random sample of residents from various income brackets were asked their opinion on tax reform
for the country of Guyana. The data so gathered were analyzed by a statistician and the results he
obtained using MINITAB are shown below:
Expected counts are printed below observed counts
Low
Middle
High
Total
For
26
75
14
115
(30.67)
(51.11)
(33.22)
Against
60
95
105
260
(69.33)
(115.56)
(**)
Neutral
34
30
11
75
(20)
(33.33)
(21.67)
Total
200
130
450
Chi-sq
0.71 +
11.17 +
11.12 +
*** +
3.66 +
11.89 +
9.8 +
0.33 +
5.25 =
55.2
DF =
??, p-value =???
a) Carefully define the null and alternative hypotheses of the x2 test underlying the generation
of the above table.
b) Find the missing values *', ***', ****, '??' and ???'.
c) What is the conclusion of this test? Give reasons for your answer.
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