A New Approximate Formula for Variance of Horvitz–Thompson Estimator using first order Inclusion Probabilities

Muhammad Qaiser Shahbaz, Muhammad Hanif
2007 Pakistan Journal of Statistics and Operation Research  
A new approximate formula for sampling variance of Horvitz-Thompson (1952) estimator has been obtained. Empirical study of the approximate formula has been given to see its performance.
doi:10.18187/pjsor.v3i1.78 fatcat:whgad56ivvfmvds6jmdnnc6pzu