ADHD researchers want to study a new stimulant drug to determine whether it can increase attention span in young children. To test the effectiveness of this drug, a researcher selects a random sample of 8 children with ADHD and measures each child's attention span before and after taking the drug for one month. Attention span is rated from 1-10, where 10 represents the highest level of attention span. Determine whether the stimulant medication significantly increases attention span in young children with ADHD.

Participant Before treatment After treatment 1 4 7 00 N IN 3 4 5 3 6 3 6 00 2 A. What statistical test should you use to evaluate if the stimulant medication significantly increases attention span? Be as specific as possible. (10 points) B. What is the significance (p-value) of the test? Is this statistically significant? (5 points) C. Write one sentence describing the overall result of the statistical analysis (hint: think overall group differences). (10 points)D. write sentence describing the difference between the groups. {It} points} E. Write m sentence in "plain English" that describes the results at this experiment