摘要:

An elementary derivation is given for simultaneous confidence ellipsoids for all subsets of a given set of linearly independent estimable functions in the general linear model. The relationship between the ellipsoids and Scheffé's method is developed. A method is provided to determine which subsets will yield contrasts which differ significantly from zero by Scheffé's method.

ISSN:0040-1706    

DOI:10.1080/00401706.1976.10489404

出版商:Taylor & Francis Group    

年代:1976

数据来源: Taylor

ISSN:0040-1706    

DOI:10.1080/00401706.1976.10489405

出版商:Taylor & Francis Group    

年代:1976

数据来源: Taylor

摘要:

This paper is an extension of previous work by the writer concerning progressively censored sampling in the normal distribution [4] and in the Weibull distribution [6]. Here local maximum likelihood estimators and estimators which utilize the first order statistic are derived for the three-parameter log-normal distribution when samples are progressively censored. An illustrative example involving life test data is incli ded. Various properties of the proposed estimators are investigated.

ISSN:0040-1706    

DOI:10.1080/00401706.1976.10489406

出版商:Taylor & Francis Group    

年代:1976

数据来源: Taylor

摘要:

This expository paper presents theory for optimum plans for accelerated life tests for estimating a simple linear relationship between a stress and product life, which has a normal or lognormal distribution, when the data are to be analyzed before all test units fail. Standard plans with equal numbers of test units at equally spaced test stresses are presented and are compared with the optimum plans. While the optimllm plans may not always be robust enough in practice, they indicate that more test units should be run at low stress than at high stress. The plans are illustrated with a temperatllre-accelersted life test of an electrical insulation analyzed with the Arrhenius model.

ISSN:0040-1706    

DOI:10.1080/00401706.1976.10489407

出版商:Taylor & Francis Group    

年代:1976

数据来源: Taylor

ISSN:0040-1706    

DOI:10.1080/00401706.1976.10489408

出版商:Taylor & Francis Group    

年代:1976

数据来源: Taylor

ISSN:0040-1706    

DOI:10.1080/00401706.1976.10489409

出版商:Taylor & Francis Group    

年代:1976

数据来源: Taylor

ISSN:0040-1706    

DOI:10.1080/00401706.1976.10489410

出版商:Taylor & Francis Group    

年代:1976

数据来源: Taylor

ISSN:0040-1706    

DOI:10.1080/00401706.1976.10489411

出版商:Taylor & Francis Group    

年代:1976

数据来源: Taylor

ISSN:0040-1706    

DOI:10.1080/00401706.1976.10489413

出版商:Taylor & Francis Group    

年代:1976

数据来源: Taylor

ISSN:0040-1706    

DOI:10.1080/00401706.1976.10489414

出版商:Taylor & Francis Group    

年代:1976

数据来源: Taylor