Modified Ratio-Type Estimators of the Mean using Extreme Ranked Set Sampling | Science Publications

Journal of Mathematics and Statistics

Amer I. Al-Omari¹  Khalifa Jaber¹  Ahmad Al-Omari¹ 

关键词: Auxiliary variable;    ratio estimator;    simple random sampling;    extreme ranked set sampling;   

DOI  :  10.3844/jmssp.2008.150.155

学科分类：社会科学、人文和艺术（综合）

来源: Science Publications

【 摘 要 】

Modified ratio-type estimators of the population mean were suggested using the first or third quartiles of the auxiliary variable based on Simple Random Sampling (SRS) and Extreme Ranked Set Sampling (ERSS) methods. It was found that, the ERSS was more efficient than the SRS based on the same sample size. Also, the ERSS involving the first quartile was superior to the third quartile.

【 授权许可】

Unknown