نتایج جستجو برای: selected through stratified sampling method
تعداد نتایج: 3185509 فیلتر نتایج به سال:
small scale industries are suffering most from the marketing problems due to their owners’ attitudes, units’ capacity, and quality of products along with the scale of production. the researchers analyzed the problems of selected twenty small scale industrial units of various industrial groups of industrial estates of sylhet division of bangladesh to get insights of the problem. primary and seco...
the main purpose of this research was to perform an analysis of the attitude of male and female students towards agrisciences in the college of agriculture and natural resources of the university of tehran. it was a correlational-descriptive research which was conducted through a survey method. the statistical population of the study consisted of 1677 male and female students, out of which 236 ...
Objective: A study was conducted to ascertain the impact of dysmenorrhea on quality life of adolescent girls of Chandigarh. Methods: Multistage stratified sampling was done and 5 sectors, 5 villages, 5 slums were selected by lottery method. Then from each area 20 respondents were selected by simple random sampling. A Self-designed interview schedule was used to collect data from 300 Adolescent ...
Sensitivity analysis is a key part of a comprehensive energy simulation study. Monte-Carlo techniques have been successfully applied to many simulation tools. Several sampling techniques have been proposed in the literature; however to date there has been no comparison of their performance for typical building simulation applications. This paper examines the performance of simple random, strati...
This research has an aim to assess agricultural students' satisfaction from their field of study. The statistical population consisted of 1040 students from the University of Bu Ali Sina (800 bachelor and 240 master students) during the years of 2011 to 2013. Through stratified random sampling method 240 bachelor and 80 master students were selected. Data was collected by means of a researcher ...
A comparison is made between the variance of the estimator of the total of a variable obtained from both a simple and a stratified random sampling, in which the sample sizes of some strata are equal to the stratum population size. It is shown that in this case, the advantage of the stratified sample could depend on the sample size. The paper presents inequalities that determine, as a function o...
SampleBoost is an intelligent multi-class boosting algorithm that employs an error parameter combined with stratified sampling during training iterations to accommodate multi-class data sets and avoid problems associated with traditional boosting methods. In this paper we investigate the choice of the error parameter along with the preferred sampling sizes for our method. Experimental results s...
background: ethical leadership represents the leader's proactive efforts to influence followers' ethical and unethical behavior and follower work attitudes such as perceived organizational support, affective commitment and normal behaviors. the purpose of this research was to test the relationship of ethical leadership and ethical context with affective commitment that mediating the r...
Abstract. This paper addresses the problem of estimating the coverage of fault tolerance through statistical processing of observations collected in fault-injection experiments. In an earlier paper, we have studied various frequentist estimation methods based on simple sampling in the whole fault/activity input space and stratified sampling in a partitioned space. In this paper, Bayesian estima...
in order to analyse the effective factors contributing to land fragmentation, required data were collected by questionnaire from 151 farmers who were selected through a stratified random sampling design from 12 villages of ramjerd yek subdistrict of marvdasht country. factor analysis was used to identity explanatory factors of land fragmentation. the variables of natural-farming, socio-cult...
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