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                             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 hypothese

b) Carefully define the null and alternative hypotheses of the ?2 test underlying the generation of the above table.

c) Find the missing values ‘*’, ‘**’, ‘***’, ‘??’ and ‘???’.

d) What is the conclusion of this test? Give reasons for your answer.