Question 1) Score of heart rate was measured in four groups of adult's subjects: Control, using drug A, using drug b, and using drug c. The following is incomplete ANOVA: ( part a 6 point, part b 6 point, total 12 point) Source DF SS MS F Model 3 1000 333.3 7.47 Error 56 2500 44.64 Corrected 59 3500 tota a) Do these data provide sufficient evidence to indicate a difference in the mean heart rate among these four types of subjects? Let a =0.05. 1. Yes, Since F statistics is greater than F value from F table we can conclude from these data to indicate a difference in the mean heart rate among these four types of subjects 2. No, Since F statistics is less than F value from F table we cannot conclude from these data to indicate a difference in the mean heart rate among these four types of subjects b) Using Tukey's multiple comparison output which groups are different? 1. Control is different from drug A, B, and C 2. 3. Drug As different from drug B Drug A is different drug C 4. All of Above Means with the same letter are not significantly different Tukey Grouping Mean x A 85.2 15 Control B 74.3 15 Drug A C 70.3 15 Drug B C C 69.6 15 Drug C