The data below represents the test scores from a sample of 15 students given different levels of a stimulant drug. You are a scientist interested in how different doses of medication are related to student test performance. You decide to perform an ANOVA. Group 1: No Group 2: Medium Group 3: High Drug Dose Dose 17 29 16 n = 15 14 21 24 22 27 20 19 23 21 18 25 19 y1 = 18 Y2 Y3 n1 = 5 n2- n3