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

question 27

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. Responses to a survey question are broken down according to employment status and the sample results are given below. At the $0.10$ significance level, test the claim that response and employment status are independent.
$\begin{array}{r|ccc} & \text { Yes } & \text { No } & \text { Undecided } \\\hline \text { Employed } & 30 & 15 & 5 \\\text { Unemployed } & 20 & 25 & 10\end{array}$

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