Find the Value of The $\chi ^ { 2 }$ Test Statistic for a Hypothesis Test of Independence

question 1

Multiple Choice

Find the value of the $\chi ^ { 2 }$ test statistic for a hypothesis test of independence. Round your answer to 3 decimal places.
-Responses to a survey question are broken down according to gender and the sample results are given below.
$$\begin{array} { l | c c c } & \text { Yes } & \text { No } & \text { Undecided } \\\hline \text { Male } & 25 & 50 & 15 \\\text { Female } & 20 & 30 & 10\end{array}$$

• A)0.749
• B)0.579
• C)0.759
• D)0.921

---

Definitions:

REM Sleep

A phase of sleep characterized by rapid eye movements, more vivid dreaming, and increased brain activity.

EEG Recordings

Measurements of the electrical activity in the brain captured through electrodes placed on the scalp, used in diagnosing and monitoring neurological conditions.

Sleeptalking

The act of talking during sleep without being aware of it, which can occur in any stage of sleep but is most common in REM sleep.

Sleep Apnea

A condition disrupting normal sleep patterns due to interruptions in breathing or instances of light breathing.