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A control in stratified sampling |
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| Authors: | M Ruiz Espejo |
| Institution: | Univerisdad Autónoma de Madrid |
| Abstract: | A new expression of the variance of the units from a stratified finite population wit L strata, is obtained in funcions of the means L–1 strata, and in conseqeuence we obtained formulae which relates the mean of a stratum in a statistical study with the population mean and the ones of the remaining strate. As an application, we obtained a useful checking of the estimation consistency by stratified sampling in any precies survey |
| Keywords: | Primary 62D05 secondary 62D99 estimation consistency finite population quality control statistical study stratification survey sampling |