首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Systematic and nonrandom sampling in the presence of linear trends
Authors:Robert L Fountain  Pramod K Pathak
Institution:1. Division of Mathematics Computer Science and Statistics , University of Texas at San Antonio , San Antonio, 78285, Texas;2. Department of Mathematics and Statistics , University of New Mexcico , Albuquerque, 87131, New Mexico
Abstract:In the case of a finite population with a linear trend, improvements in estimation procedures are suggested for several well-known systematic samplingschemes. The use of the least squares regression estimator is examined and a sampling scheme which reduces its expected mean squared error is proposed.
Keywords:finite population sampling  systematic sampling  nonrandom sampling  balanced sampling  modified sampling  regression estimators
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号