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关于回归估计量方差估计的一则说明
Särndal, Swensson & Wretman (1989) and Kott (1990a) have proposed two separate estimators for the variance of the regression estimator of a finite population mean based on a simple random sample without replacement. It is shown here that the former approximates for large samples and the latter equals respectively two known variance estimators, relative merits of which are already studied in the literature.
关于回归估计量方差估计的一则说明
Särndal, Swensson & Wretman (1989) and Kott (1990a) have proposed two separate estimators for the variance of the regression estimator of a finite population mean based on a simple random sample without replacement. It is shown here that the former approximates for large samples and the latter equals respectively two known variance estimators, relative merits of which are already studied in the literature.
特定模型下 Midzuno–Sen 策略相对若干比率型估计量的效率
The efficiency of Midzuno and Sen's strategy relative to a few estimators based on simple random sampling without replacement is studied under a postulated linear regression model with uncorrelated error and a gamma-distributed auxiliary character.
特定模型下 Midzuno–Sen 策略相对若干比率型估计量的效率
The efficiency of Midzuno and Sen's strategy relative to a few estimators based on simple random sampling without replacement is studied under a postulated linear regression model with uncorrelated error and a gamma-distributed auxiliary character.