Question

Question 2 of 3 < > -/1 View Policies Current Attempt in Progress Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. Patients in a hospital are classified as surgical or medical. A record is kept of the number of times patients require nursing service during the night and whether or not these patients are on Medicare. The data are presented here: Patient Category Medicare Surgical Medical Yes 46 52 No 36 43 Test the hypothesis (using a =0.1) that calls by surgical-medical patients are independent of whether the patients are receiving Medicare. Find to 2 decimal places the P-value for this test. The evidence is not sufficient to claim that surgical-medical patients and Medicare status are dependent. P-value Statistical Tables and Charts e Textbook and Media Attempts: 0 of 3 used Submit Answer Save for Later Last saved 2 minutes ago

Answer 1

Patient Category Surgical Medical Medicare Total Yes 46 52 98 NO 36 43 79 Total 82 95 Y 77 Expected frequencies will be Patient category Medicare surgical Medical Yes 98482 z 45.40 177 98X95 = 52.60 177 NO 798 82 3 36.6 79495 177 42.40 177 E The test statistic will be- x² = (observed – Expected frea) Expected free. (46-45.4 5:4012 (52-52 2.60)2 (36-36-6) 52.60 2 그 + (43-42.401% + 45.40 + 36.6 42:40 = 0.033 þ-value = P(30-0331 0-86 since, p-value 30.1.50 the evidence is not sufficient to claim that surgical-medical patients and medi care status are dub. CS Scanned with CamScanner