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作者：TAM, SM
摘要：A probability sampling plan is suggested in this paper for drawing the sample so that the linear least-squares predictor of the total of a finite population is made asymptotically design-unbiased. Conditions are given for the sampling plan to reduce to the more familiar sample designs discussed in the literature.
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作者：MATTHEWS, DE
摘要：Methods described first by Madansky (1965) and revived more recently by Cox and Oakes (1984, pp. 51-2) are extended to incorporate the calculation of likelihood-based confidence intervals for functions of many parameters. Examples involving failure time data are used to illustrate the techniques.
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作者：BRESLOW, NE; CAIN, KC
摘要：Samples of diseased cases and nondiseased controls are drawn at random from the population at risk. After classification according to the exposure of interest, subsamples of cases and controls are selected for purposes of covariable ascertainment. A modification of the usual logistic regression analysis yields consistent estimates of covariable adjusted relative risks and their standard errors. By balancing the numbers of exposed and nonexposed for whom covariable information is ascertained wi...
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作者：KIM, KM
摘要：Siegmund (1978) has developed a procedure for estimation following a closed sequential test, known as the repeated significance tests. Here a more elaborate approximation is proposed for a wider class of closed sequential tests. The major goal is to account for the excess over boundary in addition to the stopping time when the sequential test is terminated. Some hypothetical examples are used for comparing the two approximations. To investigate the properties of these procedures further, simul...
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作者：NAYAK, TK
摘要：A design called recapture debugging is proposed to get extra information to estimate the original number of faults, N, in a reliability system. The system is observed for a fixed amount of time .tau. and the failures are assumed to follow an exponential law with an unknown common parameter .lambda.. The maximum likelihood and moment estimators of N and .lambda. are derived and compared with the existing estimators. The recapture sampling provides substantially more information and improved est...
