| 配对设计试验中检验两个比值非零差的样本量确定 |
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| 引用本文： | 唐年胜.配对设计试验中检验两个比值非零差的样本量确定[J].云南大学学报(自然科学版),2003,25(3):202-206. |
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| 作者姓名： | 唐年胜 |
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| 作者单位： | 云南大学应用统计研究中心,云南,昆明,650091 |
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| 基金项目： | TheNationalNaturalScienceFoundation(10 2 2 60 0 5 ) . |
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| 摘 要： | 对配对设计试验,基于Tango(1998)得分统计量导出了检验2个比值非零差的2种近似样本量公式.由这些公式得到的样本量能达到预先指定的功效和控制置信区间的宽度.一个实例和一些经验结果验证了方法的有效性.
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| 关 键 词： | 渐近推断 配对设计 功效 样本量 得分检验 |
Sample size determination for testing nonzero difference of two proportions in matched-pair design |
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| Abstract.Sample size determination for testing nonzero difference of two proportions in matched-pair design[J].Journal of Yunnan University(Natural Sciences),2003,25(3):202-206. |
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| Authors: | Abstract |
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| Institution: | Research Centre of Applied Statistics, Yunnan University, Kunming 650091, China |
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| Abstract: | Two approximate sample size formulae are proposed for testing the null hypothesis of nonzero rate dif-ference of two proportions in matched-pair design based onTango' s score test statistic. The formulae can be used toproduce sample size estimates that guarantees a prespecified power of a hypothesis test at a certain significance leveland controls the width of a confidence interval with a certain confidence level. Our empirical studies confirm that theproposed sample size formulae perform satisfactorily. A real example is used to illustrate our methods. |
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| Keywords: | asymptotic inference matched-pair design power sample size score test |
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