TABLE 12-13 Recent Studies Have Found That American Children Are More Obese

question 101

Multiple Choice

TABLE 12-13
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 mean number of hours spent watching TV and weights are independent at 1% level of significance.

-Referring to Table 12-13, how many children in the survey spend no more than 6 hours watching TV and are more than 10 lbs. underweight?

• A) 5
• B) 10
• C) 15
• D) 20

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Definitions:

Extrasensory Perception (ESP)

A supposed ability of the human mind to acquire information without the use of the known (sensory) channels of communication.

Photoreception

The biological process by which organisms detect and respond to light, primarily through specialized light-sensitive cells.

Precognition

The purported psychic ability to see events in the future before they happen, outside the boundaries of known physical mechanisms.

Sensatory Receptors

Specialized cells or nerve endings that respond to changes in the environment by generating electrical signals.