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...


Using the chi-square test table to answer this question. Proper working out and right answers required.




A random sample of residents from various income brackets were asked their opinion on tax reform<br>for the country of Guyana. The data so gathered were analyzed by a statistician and the results he<br>obtained using MINITAB are shown below:<br>Expected counts are printed below observed counts<br>Total<br>115<br>Low<br>Middle<br>нigh<br>For<br>26<br>75<br>14<br>(30.67)<br>(51.11)<br>(33.22)<br>Against<br>60<br>95<br>105<br>260<br>(69.33)<br>(115.56)<br>(**)<br>Neutral<br>34<br>30<br>11<br>75<br>(20)<br>(33.33)<br>(21.67)<br>Total<br>200<br>130<br>450<br>Chi-sq =<br>0.71 +<br>11.17 +<br>11.12 +<br>3.66 +<br>11.89 +<br>9.8 +<br>0.33 +<br>5.25 =<br>55.2<br>DF = ??, p-value =???<br>a) Carefully define the null and alternative hypotheses of the x2 test underlying the generation<br>of the above table.<br>b) Find the missing values *', ***', ****', '??' and ???'.<br>c) What is the conclusion of this test? Give reasons for your answer.<br>

Extracted 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 Total 115 Low Middle нigh For 26 75 14 (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.

Jun 08, 2022
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