Recent studies have found that Australian children are more obese than in the past. The amount of time children spent watching television has received much
Recent studies have found that Australian 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. More than 10kg overweight Within 10kg of normal weight More than 10kg underweight You are interested in testing whether the average number of hours spent watching TV and weights are independent at the 1% level of signicance. From the cell with 0 to 3 hours on average watching TV and more than 10kg underweight, what is its contribution to the overall x2 statistic for the independence test? Select one: 0 1 .306 O 0.11 O 1.125 O 7.408 O 0.017 O 2.329
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