Pervaiz, M. (1989). Covariance Matrix Estimation in Complex Surveys. The Egyptian Statistical Journal, 33(1), 130-138. doi: 10.21608/esju.1989.316528
Muhammad Khalid Pervaiz. "Covariance Matrix Estimation in Complex Surveys". The Egyptian Statistical Journal, 33, 1, 1989, 130-138. doi: 10.21608/esju.1989.316528
Pervaiz, M. (1989). 'Covariance Matrix Estimation in Complex Surveys', The Egyptian Statistical Journal, 33(1), pp. 130-138. doi: 10.21608/esju.1989.316528
Pervaiz, M. Covariance Matrix Estimation in Complex Surveys. The Egyptian Statistical Journal, 1989; 33(1): 130-138. doi: 10.21608/esju.1989.316528
An estimator of asymptotic covariance matrix of vector of second-order sample moments under cluster sampling design is derived by the Taylor expansion method. The form of the estimator under stratified cluster sampling design is obtained as well.