作者: JAMES A. KOZIOL , A. JOHN PETKAU
关键词: Mathematics 、 Statistics 、 Sample size determination 、 Sequential analysis 、 Statistic 、 Scale shift 、 Exponential function 、 Sequential probability ratio test
摘要: Sequential procedures based on the modified Savage statistic are proposed for testing equality of two survival distributions when observations singly censored. Asymptotic properties, including expected sample sizes and power against contiguous exponential scale shift alternatives, examined. Comparison is made with a Mantel-Haenszel (Muenz, Green & Byar, 1977).