The article Psychiatric and Alcoholic AdmissionsDo Not
Chapter 14, Problem 8(choose chapter or problem)
The article Psychiatric and Alcoholic AdmissionsDo Not Occur Disproportionately Close to PatientsBirthdays (Psychological Reports, 1992: 944946)focuses on the existence of any relationship betweenthe date of patient admission for treatment of alcoholismand the patients birthday. Assuming a 365-dayyear (i.e., excluding leap year), inthe absence of anyrelation, a patients admission date isequally likely tobe any one of the 365 possible days. The investigatorsestablished four different admission categories: (1)within 7 days of birthday; (2) between 8 and 30 days,inclusive, from the birthday; (3) between 31 and 90days, inclusive, from the birthday; and (4) more than90 days from the birthday. A sample of 200 patientsgave observed frequencies of 11, 24, 69, and 96 forcategories 1, 2, 3, and 4, respectively. State and test therelevant hypotheses using a significance level of .01
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