Perform a Test for Independence
-A Researcher Wants to Determine $\chi ^ { 2 }$

question 20

Multiple Choice

Perform a Test for Independence
-A researcher wants to determine if the number of minutes spent watching television per day is independent of gender. A random sample of 315 adults was selected and the results are shown below. Calculate the chi -square statistic $\chi ^ { 2 }$ to determine if there is enough evidence to conclude that the number of minutes spent watching television per day is related to gender. Use $\alpha = 0.05$ .

• A) \(18.146\)
• B) \(19.874\)
• C) \(20.912\)
• D) \(21.231\)

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Definitions:

Photosensitive Cells

Cells that are sensitive to light, playing a key role in vision by converting light into signals that can be processed by the brain.

Retina

The light-sensitive layer of tissue at the back of the inner eye that converts light into neural signals for vision.

Jellylike Material

A substance with a gelatinous texture, often used in various medical and biological contexts to describe the consistency of certain cellular components or materials.

Spherical Shape

A three-dimensional round shape, where every point on the surface is equidistant from the center.