Sentence examples for for the first sampling stage from inspiring English sources

For the first sampling stage, schools were sampled from the sampling frame provided by the Ministry of Education for the Wielkopolska province via the Poznań Board of Education.

For example, the base weight for Guangdong Province on the first sampling stage was calculated by dividing the total number of eastern provinces (9) by the number of eastern provinces selected (4).

Villages within dzongkhags were the first sampling stage and households within villages the second sampling stage.

The purpose of our investigation was to compare the statistical efficiency of OPSS for selecting satellite imagery segments at a first sampling stage and pixels within the selected segments at a second sampling stage with respect to the benchmark use of simple random sampling without replacement (SRSWOR) at both stages.

Second-stage sampling: The size of the schools varied noticeably and a second sampling stage was applied.

For very large cities (e.g. Mexico City and Beijing), a fourth sampling stage was implemented based on the random selection of city geographical sub-divisions, with probability proportional to city sub-division population.

Enumeration Areas (EA) were the sampling units for the first stage sampling.

They show that unbiased estimation procedure of the main and the interaction effects are possible assuming given the sampling fractions are known for the second stage sampling.

When the first sample came back positive for cocaine, Daum demanded that the second sample be tested.

The GSHS uses a two-stage probability sampling technique, in which for the first stage, primary sampling units are schools which are selected with a probability proportional to their enrolment size.

For the second stage sampling, 'EPI (Extended Programme of Immunization) Random Walk' method was used to select individuals fulfilling the age criterion.