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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

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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. TV Hours 03 hours 6+ hours More than 10kg overweight 2 1 1 Weights Within 10kg of normal weight 20 More than 10kg underweight 10 You are interested in testing whether the average number of hours spent watching TV and weights are independent at the 1% level of signicance. If the weights and mean number of hours spent watching TV are independent, what is the expected number of children who spend more than 6 hours on average watching TV and are more than 10kg overweight? Answer: :I (Please provide your answer to 1 decimal place). 0 5 5 ' Check

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