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

question 180

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.
$$\begin{array} { l | c l l | r } & { \text { TV Hours } } & \\\text { Weights } & 0 - 3 & 3 - 6 & 6 + & \text { Total } \\\hline \text { More than } 101 \mathrm { ls } \text {. overweight } & 1 & 9 & 20 & 30 \\\text { Within } 101 \mathrm { bs } \text {. of normal weight } & 20 & 15 & 15 & 50 \\\text { More than } 10 \mathrm { lbs } \text {. underweight } & 10 & 5 & 5 & 20 \\\hline \text { Total } & 31 & 29 & 40 & 100\end{array}$$
-Referring to Table 12-12, how many children in the survey spend no more than 6 hours watching TV and are more than 10 lbs. underweight?

• A) 20
• B) 15
• C) 10
• D) 5

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Definitions:

Behaviourism

Behaviourism is a psychological approach that emphasizes the study of observable behaviors and their environmental determinants, ignoring internal mental states.

Overcompensation

A psychological term referring to the process of making up for perceived deficiencies and weaknesses by emphasizing strengths or developing new abilities.

Alfred Adler

An Austrian medical doctor and psychotherapist who founded the school of individual psychology, emphasizing the importance of feelings of inferiority and social interest.

Sports Car

A vehicle designed for high speed and performance, with great emphasis on handling, agility, and aesthetic appeal.