in the population of all the 6 yo kids, the mean score on a math test is 68. A group of 19 kids with ADHD takes the test and has a mean score of 66 and a standard deviation of 10. Conduct the appropriate test to find out whether the 19 kids with ADHD are typical of others 6-yo who have taken the test. a) Not enough information to make a decision. Ob) Yes. There is enough evidence to conclude that ADHD kids are worse mathematically than others. c) No. There is no evidence to conclude that ADHD kids are different mathematically from others. d) Yes. There is enough evidence to conclude that ADHD kids are better mathematically than others.

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