In some applications it is cost efficient to sample data in two or more stages. In the first stage a simple random sample is drawn and then stratified according to some easily measured attribute. In ...

Durbin's (1953, 1967) and Des Raj's (1968) results are generalized to show that a general class of linear homogeneous unbiased estimators for a finite population total based on arbitrary sampling ...

Between Nov. 17, 2019, and March 23, 2020, Pew Research Center completed 29,999 face-to-face interviews with non-institutionalized adults ages 18 and older living in 26 states and three union ...

Survey sampling is the process of selecting a probability-based sample from a finite population according to a sample design. You then collect data from these selected units and use them to estimate ...