Suppose researchers are conducting a randomized controlled study study that comp

Question

Suppose researchers are conducting a randomized controlled study study that compares the rates of serious cardiovascular problems for diabetic patients on rosiglitazone and pioglitazone treatments. The table below summarizes the results of the study Due Thu06/21/2018 10:59p 0 5] cardiovascular problems 0) 0) 20) 15) iglitazone2561 55049 Treatment ioglitazone 5275 155146 /120 (a) What proportion of all patients had cardiovascular problems? Preview (b) If the type of treatment and having cardiovascular problems were independent (aull bhypothe sis), about how vascular problems? many patients in the rosiglitazone group would we expect to have had cardio- Preview to 9 44 8 8 6 4

Explanation / Answer

from abve:

a)P(cardiovuscualr)=7836/218031=0.03594

b)expected number =57610*7836/218031=2070.494

Yes No Total Rosiglitazone 2561 55049 57610 Pioglitazone 5275 155146 160421 Total 7836 210195 218031

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