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...

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
(30.67)
75
(51.11)
14
(33.22)
115
Against 60
(69.33)
95
(115.56)
105
(**)
260
Neutral 34
(20)
30
(33.33)
11
(21.67)
75
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 ?2 test underlying the generation
of the above table. [2]
b) Find the missing values ‘*’, ‘**’, ‘***’, ‘??’ and ‘???’. [7]
c) What is the conclusion of this test? Give reasons for your answer.