5. You are a public health nurse working in an elementary school in Hamilton, Ontario. You have seen a substantial increase in the number of children in your school presenting with Attention Deficit Disorder (ADD). You are interested in whether a new drug developed by a local drug company improves the ability of children with ADD to maintain attention. You obtain ethics approval to study the drug, informed consent from the parents of 24 fifth grade children with ADD, administer the drug to the 24 children, and administer a test to the children to determine their ability to maintain attention while performing a task. Scores are continuous, can range from 0 to 25 with higher scores reflecting a better ability to maintain attention, and you know from previous research that scores tend to be normally distributed. Six of these students receive a placebo containing none of the drug. Six students receive 2 mg of the drug, six students receive 4 mg of the drug, and six students receive 6 mg of the drug. The table below summarizes the results from your study. Use these data to answer the following questions. Assume a=0.05. Placebo (0 mg) Drug (2 mg) Drug (4 my) Drug (6 mg) 7 16 17 7 8 14 18 11 13 12 13 11 6 11 17 7 9 15 20 10 9 13 15 a. You hypothesize that there will be a difference among the groups in the ability to maintain attention. Run the appropriate statistical test to determine if your hypothesis is correct. Was your hypothesis confirmed by the study results? Provide the calculation and/or SPSS output to support your answer. [1 Mark]