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

question 3

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. $$\begin{array} { r | r r r } & \text { Yes } & \text { No } & \text { Undecided } \\\hline \text { Employed } & 30 & 15 & 5 \\\text { Unemployed } & 20 & 25 & 10\end{array}$$

---

Definitions:

Acetylcholinesterase

An enzyme that breaks down acetylcholine, a neurotransmitter involved in muscle action and memory.

Seconal

A brand name for secobarbital, a barbiturate used as a sedative and hypnotic medication.

Drug Tolerance

A state where an individual's reaction to a drug decreases with its continued use, leading to the need for higher doses to achieve the same effect.

Dependency

A state of relying on or being controlled by something or someone else for support or existence.