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 (51.11) 14 115 (30.67) (33.22) Against 60 95 105 260 (69.33) (115.56) (**) Neutral 34 30 11 75 (20) (33.33) 200 (21.67) 130 Total 450 Chi-sq = 0.71 + *** + 9.8 11.17 + 11.12 + 3.66 + 11.89 + 0.33 + 5.25 = 55.2 DF = ??, p-value =??? a) Carefully define the null and altemative hypotheses of the x2 test underlying the generation of the above table.
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 (51.11) 14 115 (30.67) (33.22) Against 60 95 105 260 (69.33) (115.56) (**) Neutral 34 30 11 75 (20) (33.33) 200 (21.67) 130 Total 450 Chi-sq = 0.71 + *** + 9.8 11.17 + 11.12 + 3.66 + 11.89 + 0.33 + 5.25 = 55.2 DF = ??, p-value =??? a) Carefully define the null and altemative hypotheses of the x2 test underlying the generation of the above table.
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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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
26
Middle
High
Total
For
75
14
(33.22)
115
(30.67)
(51.11)
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 altemative 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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