Question

Nonparametrics Testing baseline 180 136 210 170 140 160 150 110 120 125 230 124 110 164 170 106 150 160 128 190 230 142 150 130 152 100 170 100 168 150 152 160 180 final med 156 Nifedipine 126 Nifedipine 230 Nifedipine 150 Nifedipine 120 Nifedipine 164 Nifedipine 140 Nifedipine 112 Nifedipine 120 Nifedipine 120 Nifedipine 170 Nifedipine 134 Nifedipine 116 Nifedipine 144 Nifedipine 170 Nifedipine 124 Nifedipine 136 Nifedipine 140 Nifedipine 110 Propranolol 140 Propranolol 150 Propranolol 150 Propranolol 134 Propranolol 120 Propranolol 144 Propranolol 100 Propranolol 180 Propranolol 120 Propranolol 178 Propranolol 130 Propranolol 152 Propranolol 180 Propranolol 180 Propranolol The dataset contains systolic blood pressures from patients at baseline and at the conclusion of a treatment regimen. The variable "med" indicates which medication (nifedipine or propranolol) they received. We want to know if either drug (considered separately) has an effect on blood pressure. What test would be appropriate here? Conduct the test in (a). [Note that you can create a new variable that contains the change in sbp for each patient by typing: generate sbpdiff -final- baseline] Now, we want to know if the change in systolic blood pressure from baseline to treatment completion is the same for the two drugs. What test is the most appropriate for this? Conduct the test in (c). 1. 2. 3. 4.

Answer 1

coxon Signed Rank Test To check is-there a difference between systn 1İC bloc pressures rom pakents at baseline & a the conclusiono to: There is no diffexence betueen the wo trectments Ys H,' There is a difference betwe en th e Kus。h:ea! ment. O Decision Rwe If z ;s less than -)-96, or greater tha n \'96,ryectthe mult hypohesis Test staisie 'T- 14 Cn1) ㅜ- 2 4 1S4-33 (33+1) z- 2 260 33( 33 t1)33IS 2 4 here z=-2,260<-1-36 then eject hud , hypothes. Conclusion: There is a difference betuseen the betore s atter cps the befoce & afte ctore S yeatmedd

Home Insert Page Layout Formulas Data ReviewView Clear Reapply Advanced Connections ALA Z Properties From From From From Other Existing Refresh Access Web TextSources Connections All- Edit Links A Zl Sort Filter Get External Data Connections Sort & Filter 1 Baseline final Difference Positive Differencel Rank Signed Rank 30 156 126 230 150 120 164 140 112 120 120 170 134 116 144 170 124 136 180 136 210 24 30 10 20 170 140 160 150 110 120 125 230 124 110 164 170 106 150 160 128 190 230 142 150 130 20 20 -22 10 12 10 2 0 0 60 10 6 60 32 14 6 20 0 18 -14 -20 15 1 20 20 18 140 110 140 150 150 134 120 Sheet1. Sheet2.. Sheet3 20 20 20 80 80 10 10 16 10 10 -12 > の

Text to 2Sort erAdvanced Column Filter From From From From Other Existing Refresh Access Web Text Sources Connections All Edit Links Sort & Filter Connections Get External Data 20 31 20 18 50 80 20128110 140 150 150 134 120 18 31 50 80 8 16 -10 8 0 10 20 10 190 230 142 10 19 12 -10 10 19 23 24 25 26 27 28 150 130 152 100 170 100 168 150 152 16 10 8 0 10 20 10 20 0 20 0 10 144 100 180 120 178 130 152 180 180 12 29 12 12 30 20 32 160 180 20 0 34 35 36 37 38 154 Positive Sum 352 Negative Sum 154 Test Statistic