A Researcher Wants to Determine If the Number of Minutes $x _ { 0 } ^ { 2 }$

question 35

Multiple Choice

A researcher wants to determine if the number of minutes spent watching television per day is independent ofgender. A random sample of 315 adults was selected and the results are shown below. Find the critical value $x _ { 0 } ^ { 2 }$ to determine if there is enough evidence to conclude that the number of minutes spent watching televisior per day is related to gender. Use $\alpha = 0.05$ .
$\text { Gender }$$\quad$$\text { Minutes spent watching TV per day }$
$\begin{array} { l | c c c c } \hline & 0 - 30 & 30 - 60 & 60 - 90 & 90 - \text { over } \\\text { Male } & 25 & 35 & 75 & 45 \\\text { Female } & 30 & 45 & 45 & 15\end{array}$

• A) 7.815
• B) 9.348
• C) 11.345
• D) 6.251

---

Definitions:

Myopia

A vision condition characterized by difficulty in seeing distant objects clearly, commonly known as nearsightedness.

Presbyopia

A condition associated with aging in which the eye exhibits a progressively diminished ability to focus on near objects due to the loss of elasticity of the lens.

Corneal Ulcer

An open sore on the cornea, the clear layer in front of the eye, which can cause pain, redness, and vision problems, usually resulting from infection or injury.

Conjunctivitis

An inflammation or infection of the outer membrane of the eyeball and the inner eyelid.