Please complete the following problems using SPSS. Interpret all results at the .05 significance level and round to two decimal places. Record your responses in the spaces provided and make sure you do not miss any questions. Make sure to include statistical notation when appropriate and double-check your data entry!

3. 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. (40 points) Participant Before treatment After treatment 1 4 7 2 8 W N 3 5 4 0 4 5 3 5 6 1 4 7 3 6 8 8 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 m sentence describing the difference between the groups. (It? points} E. Write sentence in "plain English" that describes the results of this experiment. {5 points)