It is shown that the proposed mean imputation estimators are asymptoyically normal.
It is shown that the proposed mean imputation estimators are asymptoyically normal.
证明了它们具有渐近正态性，并进行了模拟研究。
It is shown that the proposed mean imputation estimators are asymptoyically normal.
证明了它们具有渐近正态性，并进行了模拟研究。