Show transcribed image text 5. (15 points) In an experiment examining the impact of drug type and dose on cholesterol levels, 100 subjects were randomly assigned to one of four groups: low-dose Lipitor, high-dose Lipitor, low-dose Zocor, or high-dose Zocor. After three months of treatment cholesterol levels were measured on each subject. The three profile plots in Figure 2 represent possible effects due to dose and drug that the experimenters could see in their experiment. Figure 2: Profile Plots for Problem 4 (a) Which of these plots corresponds to an interaction between dose and drug? (b) Describe the effect displayed in the bottom plot? (c) How would a profile plot look in which there is no drug nor dose effect?
5. (15 points) In an experiment examining the impact of drug type and dose on cholesterol levels, 100 subjects were randomly assigned to one of four groups: low-dose Lipitor, high-dose Lipitor, low-dose Zocor, or high-dose Zocor. After three months of treatment cholesterol levels were measured on each subject. The three profile plots in Figure 2 represent possible effects due to dose and drug that the experimenters could see in their experiment. Figure 2: Profile Plots for Problem 4 (a) Which of these plots corresponds to an interaction between dose and drug? (b) Describe the effect displayed in the bottom plot? (c) How would a profile plot look in which there is no drug nor dose effect?
