stats 200 level?

15. (6 marks) Linear Regression a) By assuming X = times and Y = amount of people infected a day by covid- 19, fill out the following table. X XY X 2 Y 2 0 0 1 6 4 Total CI=confidence interval . a) 31 = -0.30726 Bo = 0.5977 . c) Bo = 0.30726 81 = 0.5977, 90% CI of B1 = [-0.3492, 0.9638] 90% CI of B1 = [0.3492, 0.9638] . b) B1 = 0.30726 Bo = 0.5977 . d) B1 = 0.30726 Bo = 0.5977 90% CI of B1 = [-0.492, 9.638] 90% CI of B1 = [-0.3492, 0.9638] 16. (6 marks) The Wilcoxon Signed Rank Sum Test. The table below shows the hours of relief provided by two analgesic drugs in 6 patients suffering from arthritis. Is there any evidence that one drug provides longer relief than the other? Case Drug A Drug B 1 3.6 5.7 2 7.3 9.9 3 2.6 2.9 4 2.0 3.5 5 2.6 2.4 a =0.20, CV=Critical Value . a) W =1 CV=0 Ho Accepted. . c) W = 1 CV=2 Ho rejected . b) W = 14 CV=2 Ho rejected . d) W =1 CV=2 Ho Accepted Question 1 continues on the next page