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

question 158

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.
-Which of the following is a "robust" test procedure against the violation of distribution assumptions?

• A)χ² test of independence
• B)McNemar test for the difference between two proportions
• C)χ² test for the differences among more than two proportions
• D)Wilcoxon rank sum test for difference in medians

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Definitions:

Sensing Range

The maximum and minimum distances within which a sensor can accurately detect an object.

Solar Cell

A device that converts light energy directly into electricity by the photovoltaic effect, typically used in solar panels.

Light Energy

The form of energy visible to the human eye, produced by photons, and used in various applications ranging from vision to photosynthesis.