Abstract A two-sample nonparametric test based on two independent samples is proposed for comparing mean time to failure (MTTF) functions of two life distributions. The proposed test has the flexibility of handling unequal sample sizes and crossings of mean time to failure functions. The test is shown to be consistent and a bound on asymptotic size has been derived. A computational technique is devised for evaluating the proposed test statistic. A simulation study is carried out for assessment of the merit of the proposed test procedure. Finally, the test is applied to real-life data sets for illustration.

中文翻译：

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用于比较年龄替换中的平均失效时间函数的两样本非参数检验

摘要 为了比较两种寿命分布的平均失效时间（MTTF）函数，提出了一种基于两个独立样本的双样本非参数检验。建议的测试具有处理不等样本大小和平均失效时间函数交叉的灵活性。测试表明是一致的，并且已经导出了渐近大小的界限。设计了一种计算技术来评估建议的测试统计量。进行模拟研究以评估建议的测试程序的优点。最后，将测试应用于现实数据集以进行说明。