a) Carefully define the null and alternative hypotheses of the ?2 test underlying the generation of the table below . b) Find the missing values ‘*’, ‘**’, ‘***’, ‘??’ and ‘???’. c) What is the conclusion of this test? Give reasons for your answer. A random sample of residents from various income brackets were asked their opinion on tax reformfor the country of Guyana. The data so gathered were analyzed by a statistician and the results heobtained using MINITAB are shown below:Expected counts are printed below observed countsLowMiddleнighTotal26(30.67)For7514115(51.11)(33.22)Against6095105260(69.33)(115.56)(**)Neutral34301175(20)(33.33)(21.67)Total200130450Chi-sq0.71 +11.17 +11.12 +*** +3.66 +11.89 +9.8 +0.33 +5.25 =55.2DF = ??, p-value =???

Answered: Carefully define the null and…

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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Question

a) Carefully define the null and alternative hypotheses of the ?2 test underlying the generation of the table below .
b) Find the missing values ‘*’, ‘**’, ‘***’, ‘??’ and ‘???’.
c) What is the conclusion of this test? Give reasons for your answer.

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
нigh
Total
26
(30.67)
For
75
14
115
(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 =???

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