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

question 91

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, the degrees of freedom of the test statistic are

• A) 1
• B) 2
• C) 4
• D) 9

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