Ratio Method to the Mean Estimation Using Coefficient of Skewness of Auxiliary Variable
نویسندگان
چکیده
This paper proposes some ratio-type estimators for population mean using known skewness coefficient of auxiliary variable. Theoretically, the expressions of mean square error(MSE) up to first order of approximation for all proposed ratio estimators are obtained. The efficiency between the proposed estimators and some known estimators is compared. The results are supported by an application with original data.
منابع مشابه
An Improved Ratio Type Predictive Estimator for Estimating Finite Population Mean Using Auxiliary Information
In the present article, motivated by Jeelani et al. (2013), we have made an attempt to develop an improved ratio type estimator of population mean using predictive method of estimation by using linear combination of coefficient of skewness and the quartile deviation of auxiliary variable. The mathematical expressions for the bias and mean squared error (MSE) of the proposed estimator up to the ...
متن کاملModified Sampling Strategies Using Correlation Coefficient for Estimating Population Mean
This paper proposes two sampling strategies based on the modified ratio estimator using the population mean of auxiliary variable and population correlation coefficient between the study variable and the auxiliary variable by Singh and Tailor (2003) for estimating the population mean (total) of the study variable in a finite population. A comparative study is made with usual sampling strategies...
متن کاملAccounting for secondary variable for the classification of mineral resources using co-kriging technique; a Case study of Sarcheshmeh porphyry copper deposit
Due to substantial effect of classification of resource models on future mine planning, one should come with an accurate method of estimation to guarantee that the minimum error is acquired in the estimation process. The known world class Cu-Mo deposit, Sarcheshmeh Porphyry deposit (central Iran) selected as the study area. The Hypogene zone of the deposit was chosen as the space in which estim...
متن کاملModified Ratio cum Product Estimator for Estimation of Finite Population Mean with Known Correlation Coefficient
In sampling theory, a wide variety of techniques is used to obtain efficient estimators for the population mean. The commonly used method to obtain the estimator for population mean is simple random sampling without replacement (SRSWOR) when there is no auxiliary variable available. There are methods that use the auxiliary information of the study characteristics. If there exists an auxiliary v...
متن کاملImproved Estimation of Population Mean Using Median and Coefficient of Variation of Auxiliary Variable
This manuscript deals with the estimation of population mean of the variable under study using an improved ratio type estimator utilizing the known values of median and coefficient of variation of auxiliary variable. The expressions for the bias and mean square error (MSE) of the proposed estimator are obtained up to the first order of approximation. The optimum estimator is also obtained for t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2010