In the present paper, we study the regression-cum-exponential estimators for estimating ratio of two population means under two different situations. The bias and mean square errors (MSE) are obtained up to the first order of approximation and the conditions for attaining the minimum mean square error of suggested estimators are derived. Theoretical comparisons of suggested estimators with relevant estimators are given. Using real census data sets published by Government of India, an empirical study is carried out to justify the efficiency of the proposed estimators with the conventional as well as the estimators used in practice.

中文翻译：

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无响应存在下使用回归求和指数估计的两种均值之比估计

在本文中，我们研究了在两种不同情况下用于估计两个总体均值比率的回归暨指数估计器。直到第一阶近似值都获得了偏差和均方误差（MSE），并得出了获得建议估计量的最小均方误差的条件。给出了建议估计量与相关估计量的理论比较。利用印度政府发布的真实人口普查数据集，进行了一项实证研究，以证明建议的估算器与传统估算器和实际使用的估算器的效率是合理的。