TABLE 11-13
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 regard 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 11-13, if there is no connection between weights and average number of hours spent watching TV, we should expect how many children to spend no more than 6 hours on average watching TV and be more than 10 lbs. underweight?
A) 5.8
B) 6.2
C) 8
D) 12

Question

TABLE 11-13
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 regard 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 11-13, if there is no connection between weights and average number of hours spent watching TV, we should expect how many children to spend no more than 6 hours on average watching TV and be more than 10 lbs. underweight?
A) 5.8 
B) 6.2 
C) 8 
D) 12

Quizplus · Accepted Answer

The Answer of TABLE 11-13
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 regard 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 11-13, if there is no connection between weights and average number of hours spent watching TV, we should expect how many children to spend no more than 6 hours on average watching TV and be more than 10 lbs. underweight?
A) 5.8 
B) 6.2 
C) 8 
D) 12

TABLE 11-13 Recent Studies Have Found That American Children Are More Obese