نتایج جستجو برای: using cochrans formula and simple random sampling
تعداد نتایج: 17420360 فیلتر نتایج به سال:
due to the limiting workspace of parallel manipulator and regarding to finding the trajectory planning of singularity free at workspace is difficult, so finding a best solution that can develop a technique to determine the singularity-free zones in the workspace of parallel manipulators is highly important. in this thesis a simple and new technique are presented to determine the maximal singula...
This study aimed to investigate the relationship between job satisfaction and rganizational citizenship behavior and personality traits city staff Lorestan. The research objective of the application and the method of data collection, descriptive, correlative to-be conducted in 1394. The study population of 500 municipal employees Lorestan 217 employees were selected using Cochran formula The se...
this study aimed to explain the role of self-leadership and self-management on human capital of ministry of c.l and s.w. the research method was descriptive and correlational and data analysis metod was sem that using cochran's sampling formula that sample size was determined 306 personnel by simple random sampling. self-leadership and self-management of abili and mazari (2014) with reliab...
Implementing unequal probability sampling, without replacement, is very complex and several methods have been suggested for its performance, including : Midseno design and systematic design. One of the methods that have been introduced by Devil and Tille (1998) is the splitting design that leads to simple random sampling .in this paper by completely explaining the design, with an example, we ha...
abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...
in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...
Increasing work and organizational pressures cause a stressful situation and burnout among human resources. The objective of this research is to investigate the role of personality traits in burnout formation. Research methodology includes both descriptive and correlation analysis based on structural equations modeling. Research population consists of 186 employees of the National Iranian ...
this research, applied as a survey approach aimed at investigating farmers’ tendency and attitudes toward agricultural water management styles (wmss). therefore, using cochran’s formula and simple random sampling, 244 farmers were selected in doroudzan region, iran. the data were acquired by face-to-face structural interviews and as well through a questionnaire that consisted of closed and open...
Analyzing data sets of billions of records has now become a regular task in many companies and institutions. In the statistical analysis of those massive data sets, sampling generally plays a very important role. In this work, we describe a scalable simple random sampling algorithm, named ScaSRS, which uses probabilistic thresholds to decide on the fly whether to accept, reject, or wait-list an...
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