Question: 22. Problem 12 in Chapter IT presented data from a andy testing the effectiveness of Ritalin for increating attention span for children with ADHD: Results

22. Problem 12 in Chapter IT presented data from a andy testing the effectiveness of Ritalin for increating attention span for children with ADHD: Results from a sample of w = 25 chaidren showed an average increase of titention span of M ,, = 6.8 minutes with a standund deviation of } = 5.5 aner the children were administered.
the drug.
w. Make a point estanare of the population meurt difference in attention span after children with ADHD luke Ritalin,

b. Make an interval estimate of the population mean difference so that you are 995 confident that the true mean difference is in your interval

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