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

question 70

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, suppose the value of the test statistic was 30.00 (which is not the correct value) and the critical value at 1% level of significance was 10.00 (which is not the correct value) , which of the following conclusions would be correct?

• A) We will reject the null and conclude that average number of hours spent watching TV and weights are independent.
• B) We will accept the null and conclude that average number of hours spent watching TV and weights are not independent.
• C) We will reject the null and conclude that average number of hours spent watching TV and weights are not independent.
• D) We will accept the null and conclude that average number of hours spent watching TV and weights are independent.

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Definitions:

Living Wills

Legal documents that specify a person's wishes regarding medical treatment if they become incapacitated and unable to communicate.

Public

The general population or the community at large, often considered in the context of public opinion, health, or services.

Feeding Tubes

Medical devices used to provide nutrition to individuals who cannot obtain nutrition by mouth, are unable to swallow safely, or need nutritional supplementation.

Intensive Care

Highly specialized medical care provided to patients with life-threatening or severe illnesses or injuries, typically involving close monitoring and support from advanced medical equipment and professionals.