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

question 20

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, the critical value of the test will be

• A) 6.635.
• B) 13.277.
• C) 14.860.
• D) 21.666.

---

Definitions:

Scientific Experiments

A method of inquiry in the natural sciences involving observations, the formulation of hypotheses, and conduct of experiments to test these hypotheses.

Quantitative Researchers

Scientists who specialize in the study of phenomena via numerical data and statistical analysis.

Surveys And Questionnaires

Research tools used for collecting data from a predefined group of respondents to gain information and insights on various topics of interest.

Data Collection

The process of gathering and measuring information on targeted variables in an established systematic fashion, enabling one to answer relevant questions and evaluate outcomes.