Basic direct and indirect estimators in sae package
نویسندگان
چکیده
This document presents design unbiased direct estimators and simple indirect estimators of domain means Ȳd, d = 1, . . . , D. For a general random sampling without replacement within each domain Ud. We denote by πdj the inclusion probability of j-th unit from d-th domain in the corresponding domain sample sd and wdj = π −1 dj is the corresponding sampling weight. A designunbiased direct estimator of Ȳd is the Horvitz-Thompson (HT) estimator, given by ˆ̄ Y DIR d = N −1 d ∑
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