Children with ADHD Do children diagnosed with attention deficit hyperactivity disorder ADHD have smaller brains than children without this condition This question was the topic of a research study Brain scans were completed for a representative sample of 152 children with ADHD and a representative sample of 139 children without ADHD Summary values for total cerebral volume in cubic milliliters are given in the following table USE SALT n ML3 152 Children without ADHD 139 1 104 7 Interpret the interval X S 1 058 5 116 3 111 7 MY NOTES Construct a 95 confidence interval estimate of the difference in mean brain volume in mL3 for children with and without ADHD Use With ADHD Without ADHD Use technology to calculate your critical value Enter your answer using interval notation Round your numerical values to two decimal places PRACTICE ANOTHER We are 95 confident that the true difference in mean brain volume for children with ADHD and the mean brain volume for children without ADHD falls within interval The bounds of the interval suggest the mean brain volume is higher for those without ADHD this