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

question 23

Multiple Choice

SCENARIO 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-yearolds 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 Scenario 12-13,if there is no connection between weights and average number of hours spent watching TV,we should expect how many children to be spending no more than 6 hours on average watching TV and are more than 10 lbs.underweight?

• A)5.8
• B)6.2
• C)8
• D)12

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Definitions:

Erythrocyte Production

The process by which new red blood cells (erythrocytes) are generated, primarily occurring in the bone marrow, known medically as erythropoiesis.

Minerals

Inorganic substances required by the body in small amounts for a variety of functions, including building strong bones and teeth, and regulating metabolism.

Buffers

Substances that minimize changes in pH by absorbing or releasing hydrogen ions in a solution.

Enzymes

Biological catalysts that speed up chemical reactions in living organisms by lowering the activation energy, involved in processes such as digestion and metabolism.