A confidence interval for Pr(X < Y) - Pr(X > Y) estimated from simple cluster samples.
Biometrics
; 51(2): 571-8, 1995 Jun.
Article
em En
| MEDLINE
| ID: mdl-7662846
ABSTRACT
Distribution-free confidence intervals based on Somers' d (a simple function of the Mann-Whitney U statistic) are developed for Pr(X < Y) - Pr(X > Y), where X and Y are the ranks of any two observations from two independent populations. The approach accommodates a complex sampling design, and explicit formulas are given for simple cluster sampling. The method also accommodates simple progressive left- and right-censoring. The accuracy of the interval is shown to improve when the tanh-1 transform is used. A bootstrap solution was tried and did not perform as well as the proposed solution.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Análise por Conglomerados
/
Intervalos de Confiança
/
Modelos Estatísticos
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Humans
Idioma:
En
Revista:
Biometrics
Ano de publicação:
1995
Tipo de documento:
Article
País de afiliação:
Canadá