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Author: Rajesh Singh Publisher: Infinite Study ISBN: 1599730464 Category : Mathematics Languages : en Pages : 75
Book Description
This volume is a collection of six papers on the use of auxiliary information and a priori values in construction of improved estimators. The work included here will be of immense application for researchers and students who employ auxiliary information in any form.
Author: Rajesh Singh Publisher: Infinite Study ISBN: 1599730464 Category : Mathematics Languages : en Pages : 75
Book Description
This volume is a collection of six papers on the use of auxiliary information and a priori values in construction of improved estimators. The work included here will be of immense application for researchers and students who employ auxiliary information in any form.
Author: Hulya Cingi Publisher: Bentham Science Publishers ISBN: 1608050122 Category : Mathematics Languages : en Pages : 129
Book Description
"Ratio Method of Estimation - This is an ideal textbook for researchers interested in sampling methods, survey methodologists in government organizations, academicians, and graduate students in statistics, mathematics and biostatistics. This textbook makes"
Author: Rajesh Singh Publisher: Infinite Study ISBN: Category : Languages : en Pages : 10
Book Description
In this paper exponential ratio and exponential product type estimators using two auxiliary variables are proposed for estimating unknown population variance 2 yS . Problem is extended to the case of two-phase sampling. Theoretical results are supported by an empirical study.
Author: Rajesh Singh Publisher: Infinite Study ISBN: Category : Languages : en Pages : 11
Book Description
This study proposes improved chain-ratio type estimator for estimating population mean using some known values of population parameter(s) of the second auxiliary character. The proposed estimators have been compared with two-phase ratio estimator and some other chain ratio type estimators. The performances of the proposed estimators have been supported with a numerical illustration.
Author: Prayas Sharma Publisher: Infinite Study ISBN: Category : Languages : en Pages : 18
Book Description
Chakrabarty (1979), Khoshnevisan et al. (2007), Sahai and Ray (1980), Ismail et al. (2011) and Solanki et al. (2012) proposed estimators for estimating population mean Y. Up to the first order of approximation and under optimum conditions, the minimum mean squared error (MSE) of all the above estimators is equal to the MSE of the regression estimator.
Author: Rajesh Singh, Florentin Smarandache Publisher: Infinite Study ISBN: 159973348X Category : Mathematics Languages : en Pages : 56
Book Description
The present book aims to present some improved estimators using auxiliary and attribute information in case of simple random sampling and stratified random sampling and in some cases when non-response is present. This volume is a collection of five papers, written by seven co-authors (listed in the order of the papers): Sachin Malik, Rajesh Singh, Florentin Smarandache, B. B. Khare, P. S. Jha, Usha Srivastava and Habib Ur. Rehman.
Author: Josep M. Bayona Publisher: Academic Press ISBN: 0123813743 Category : Science Languages : en Pages : 2998
Book Description
Comprehensive Sampling and Sample Preparation is a complete treatment of the theory and methodology of sampling in all physical phases and the theory of sample preparation for all major extraction techniques. It is the perfect starting point for researchers and students to design and implement their experiments and support those experiments with quality-reviewed background information. In its four volumes, fundamentals of sampling and sample preparation are reinforced through broad and detailed sections dealing with Biological and Medical, Environmental and Forensic, and Food and Beverage applications. The contributions are organized to reflect the way in which analytical chemists approach a problem. It is intended for a broad audience of analytical chemists, both educators and practitioners of the art and can assist in the preparation of courses as well in the selection of sampling and sample preparation techniques to address the challenges at hand. Above all, it is designed to be helpful in learning more about these topics, as well as to encourage an interest in sampling and sample preparation by outlining the present practice of the technology and by indicating research opportunities. Sampling and Sample preparation is a large and well-defined field in Analytical Chemistry, relevant for many application areas such as medicine, environmental science, biochemistry, pharmacology, geology, and food science. This work covers all these aspects and will be extremely useful to researchers and students, who can use it as a starting point to design and implement their experiments and for quality-reviewed background information There are limited resources that Educators can use to effectively teach the fundamental aspects of modern sample preparation technology. Comprehensive Sampling and Sample Preparation addresses this need, but focuses on the common principles of new developments in extraction technologies rather than the differences between techniques thus facilitating a more thorough understanding Provides a complete overview of the field. Not only will help to save time, it will also help to make correct assessments and avoid costly mistakes in sampling in the process Sample and sample preparation are integral parts of the analytical process but are often less considered and sometimes even completely disregarded in the available literature. To fill this gap, leading scientists have contributed 130 chapters, organized in 4 volumes, covering all modern aspects of sampling and liquid, solid phase and membrane extractions, as well as the challenges associated with different types of matrices in relevant application areas
Author: Sachin Malik Publisher: Infinite Study ISBN: Category : Languages : en Pages : 13
Book Description
This paper deals with the problem of estimating the finite population mean when some information on two auxiliary attributes are available.
Author: Rajesh Singh Publisher: Infinite Study ISBN: Category : Languages : en Pages : 12
Book Description
Some ratio estimators for estimating the population mean of the variable under study, which make use of information regarding the population proportion possessing certain attribute, are proposed.
Author: Rajesh Singh
Author: Rajesh Singh
Author: Rajesh Singh
Author: Hulya Cingi
Author: Rajesh Singh 
Author: Rajesh Singh 
Author: Prayas Sharma
Author: Rajesh Singh, Florentin Smarandache
Author: Josep M. Bayona
Author: Sachin Malik
Author: Rajesh Singh