Use A $\chi ^ { 2 }$ Test to Test the Claim That in the Given Contingency

question 12

Essay

Use a $\chi ^ { 2 }$ test to test the claim that in the given contingency table, the row variable and the column variable are independent. Tests for adverse reactions to a new drug yielded the results given in the table. At the 0.05 significance level, test the claim that the treatment (drug or placebo) is independent of the reaction (whether or not headaches were experienced).
$\begin{array} { r | c c } & \text { Drug } & \text { Placebo } \\\hline \text { Headaches } & 11 & 7 \\\text { No headaches } & 73 & 91\end{array}$

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Definitions:

Attorney

A legal professional authorized to practice law, representing clients in legal matters and providing advice.

Alternate Jurors

Additional jurors selected during a trial who will step in should any of the main jurors be unable to continue serving.

Civil Trial

A judicial process to resolve disputes between private parties, organizations, or government entities, where the result typically involves compensation or the enforcement of rights rather than criminal penalties.

Filing an Appeal

The formal process of asking a higher court to review and change the decision of a lower court.