It was reported that in a survey of 4717 American youngsters aged 6 to 19, 15% were seriously overweight (a body mass index of at least 30; this index is a measure of weight relative to height). Calculate a confidence interval using a 99% confidence level for the proportion of all American youngsters who are seriously overweight. (Round your answers to three decimal places.) , Interpret the resulting interval. We are 99% confident that the true proportion of American youngsters who are seriously overweight is outside this interval. We are 99% confident that the true proportion of American youngsters who are seriously overweight is within this interval. We are 99% confident that the true proportion of American youngsters who are seriously overweight is below this interval. We are 99% confident that the true proportion of American youngsters who are seriously overweight is above this interval.
