نتایج جستجو برای: iran using stratified random sampling technique

تعداد نتایج: 4067547  

Journal: :Mathematics 2023

One of the most useful indicators relative dispersion is coefficient variation. The characteristics variation have contributed to its widespread use in scientific and academic disciplines, with real life applications. traditional estimators are based on conventional moments; therefore, these highly affected by presence extreme values. In this article, we develop some novel calibration-based for...

   The present study aimed to investigate the accuracy and precision estimation of the number, basal area and volume of the standing trees by methods of random and systematic random sampling in the forests of West Guilan. The cost or inventory time was determined using the criteria (E%2 × T). Inventory was carried out by complete sampling (census) in an area of 52 hectares. The study area (sect...

2010
Gina B. Thomason

This study examined if, among families whose children were enrolled in the Ferst Foundation for Childhood Literacy, there was a relationship between the home literacy environment, measured by a scale survey, and the length of time enrolled in the program. Participants were a stratified random sampling from the population of parents in the State of Georgia whose children were enrolled in the Fer...

2010
Rajesh Singh Mukesh Kumar Manoj K. Chaudhary Cem Kadilar

In this article we have considered the problem of estimating the population mean   Y in the stratified random sampling using the information of an auxiliary variable x which is correlated with y and suggested improved exponential ratio estimators in the stratified random sampling. The mean square error (MSE) equations for the proposed estimators have been derived and it is shown that the prop...

2012
Asghar Afshar Jahanshahi

The main objective of this study is to come to know the fact that which level of the three levels of managers (Top, Middle and Low Level) has more participation in applying e-commerce in the organization. Another purpose of the study is to know that how many people are employed as IT personal in the Indian small and medium enterprises? In this study we used Stratified Random Sampling to collect...

2011
Lily Lin

This article develops a method of ratio estimate in fuzzy sense. By both the simple random sampling and stratified random sampling, we can obtain the ratio estimate in usual statistical sense. However, the sampling data may be ambiguous in some uncertain circumstance. To solve such kind of problem, we probe into the simple random sampling and stratified random sampling in fuzzy sense, obtain th...

Journal: :Memoirs of the Faculty of Science, Kyushu University. Series A, Mathematics 1972

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده علوم اجتماعی 1393

the present study is paid to the evaluation of the welfare program of the unemployment insurance in iran. the main purpose which was the main reason for performing this thesis, was the unemployment insurance plan’s challenges in iran such as financial problems of this plan, prolongation of the credit receipt for some insured people, unemployment slow exiting from the unemployment insurance fund...

Journal: :Annals of the Institute of Statistical Mathematics 1954

2004
Roland E. Wunderlich Thomas F. Wenisch Babak Falsafi James C. Hoe

Recent research advocates applying sampling to accelerate microarchitecture simulation. Simple random sampling offers accurate performance estimates (with a high quantifiable confidence) by taking a large number (e.g., 10,000) of short performance measurements over the full length of a benchmark. Simple random sampling does not exploit the often repetitive behaviors of benchmarks, collecting ma...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید