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

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-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.
12-30 Chi-Square and Nonparametric Tests
-Referring to Scenario 12-13, how many children in the survey spend more than 6 hours
Watching TV and are more than 10 lbs.overweight?

A) 1
B) 9
C) 20
D) 40