نتایج جستجو برای: sample using cochrans formula for infinite population
تعداد نتایج: 11644950 فیلتر نتایج به سال:
Customer loyalty needs to understand the buying cycle. The purchase cycle starts from consumer making a for first time then will conduct post-purchase evaluation on product, after which decide buy product again or not. This research is stated in hypothesis that there positive influence between pricing customer (Study at Bandung Wholesale Center). population this study are customers who make pur...
the aim of the present study was to determine the difference of information resources used by elite and sub–elite athletes when self–evaluating their performance. the statistical population included 170 elite and sub-elite athletes in sanandaj city and 120 participants were randomly selected as the sample of the study based on krejcie and morgan formula. to collect the data, wayment (2002) self...
Many applications in genetic analyses utilize sampling distributions, which describe the probability of observing a sample of DNA sequences randomly drawn from a population. In the one-locus case with special models of mutation, such as the infinite-alleles model or the finite-alleles parent-independent mutation model, closed-form sampling distributions under the coalescent have been known for ...
fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...
Many applications in genetic analyses utilize sampling distributions, which describe the probability of observing a sample of DNA sequences randomly drawn from a population. In the one-locus case with special models of mutation such as the infinite-alleles model or the finite-alleles parent-independent mutation model, closed-form sampling distributions under the coalescent have been known for m...
the main purpose of this study was to identify and analyze the mechanisms of small and medium enterprises (smes) development in qazvin province. the study is an applied quantitative research. the data was collected using a descriptive-survey method. the statistical population of the study consisted of managers in charge of smes in qazvin province. 93 people were selected as the sample by using...
Previously reported methods for estimating the number of different alleles at a single locus in a population have not described a useful general result. Using the number of alleles observed in a sample gives an underestimate for the true number of alleles. The similar problem of estimating the number of species in a population was first investigated in 1943. In this article we use the sample co...
In this paper, we establish the cutoff phenomena for the discrete time infinite alleles Moran model. If M is the population size and μ is the mutation rate, we find a cutoff time of log(Mμ)/μ generations. The stationary distribution for this process in the case of sampling without replacement is the Ewens sampling formula. We show that the bound for the total variation distance from the generat...
UNLABELLED 99mTc-L,L-ethylene, L, dicysteine (EC) clearance shows strong correlation with orthoiodohippurate clearance, and it is possible to estimate effective renal plasma flow from 99mTc-EC clearance. In routine clinical studies, it is practical to use the one or two plasma sample method instead of multiple plasma samples for clearance determination. A single-sample technique was developed f...
the present study evaluates effects of organizational culture on organizational commitment with emphasis on the role of mediator entrepreneurial orientation departments within the material procurement management at national iranian south oil company. statistic population included of 470 experts and managers, 23 departments within the material procurement management that using stratified random ...
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