TABLE 12-12 Recent Studies Have Found That American Children Are More Obese

question 158

Multiple Choice

TABLE 12-12
Recent studies have found that American children are more obese than in the past. The amount of time children spent watching television has received much of the blame. A survey of 100 ten-year-olds revealed the following with regards to weights and average number of hours a day spent watching television. We are interested in testing whether the average number of hours spent watching TV and weights are independent at 1% level of significance.

-Referring to Table 12-12, how many children in the survey spend more than 6 hours watching TV and are more than 10 lbs. overweight?

• A) 1
• B) 9
• C) 20
• D) 40

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Definitions:

Linear Perspective

A technique in visual art, particularly drawing and painting, to create the illusion of depth and distance on a flat surface, using converging parallel lines.

Opponent-Process Theory

A psychological and neurological model that explains how the perception of colors is controlled by the operation of opposing neural systems.

Afterimages

Visual illusions that continue to appear in one's vision after the exposure to the original image has ceased.

Perceptual Adaptation

Perceptual adaptation is the ability of the brain to adjust to changes in sensory stimuli, enabling an individual to continue to function effectively in the environment despite alterations in perception.