Use A $X^2$ Test to Test the Claim That in the Given Contingency

question 47

Essay

Use a $X^2$
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:

Respondent

An individual who answers or responds to a survey, questionnaire, or experiment.

Moral Development

The process through which individuals develop proper attitudes and behaviors toward other people in society, based on social norms, rules, and laws.

Prime Time

The time period during which the largest number of people are watching television or are considered to be the most valuable for television broadcasters.