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21.
M.S. Srivastava 《统计学通讯:理论与方法》2013,42(11):3285-3299
In this paper, the bootstrap method of Efron (1979) is given for a ranking and a slippage problem, where the ranking (or slippage) is with respect to the mean of the distributions. The method is also applied to obtain a confidence interval for the largest mean. 相似文献
22.
In this paper we have proposed chain ratio type estimators for ratio of two population means using two auxiliary characters. The expressions for bias and mean square error of these estimators have been derived. A comparison of the proposed estimator with that of double sampling estimator has been made in terms of mean square error. An emperical study has also been made. 相似文献
23.
Small-disturbance approximations for the bias vector and mean squared error matrix of the mixed regression estimator for the coefficients in a linear regression model are derived and efficiency with respect to least squares estimator is examined. 相似文献
24.
This article presents a comparative study of the efficiency properties of the coefficient of determination and its adjusted version in linear regression models when disturbances are not necessarily normal. 相似文献
25.
Devi R. Gnyawali Manish K. Srivastava 《Journal of Engineering and Technology Management》2013,30(1):1-20
We develop a conceptual model that explains how a firm's cluster and network complement each other in enhancing the firm's likelihood of technological innovations. We identify critical innovation catalysts-awareness and motivation—and innovation barriers—resource constraints, organizational rigidity, and uncertainty. Our conceptual model explains how various factors in the cluster such as competitive intensity, social interaction intensity, and cluster vitality and network factors such as resource potential, acquisition orientation, co-development orientation, and network vitality impact innovation catalysts and barriers and subsequently the firm's likelihood of generating incremental and breakthrough innovations. We discuss several promising avenues for future research. 相似文献
26.
E. Olusegun George Dale Armstrong Paul J. Catalano Deo Kumar Srivastava 《Journal of statistical planning and inference》2007
Scientific experiments commonly result in clustered discrete and continuous data. Existing methods for analyzing such data include the use of quasi-likelihood procedures and generalized estimating equations to estimate marginal mean response parameters. In applications to areas such as developmental toxicity studies, where discrete and continuous measurements are recorded on each fetus, or clinical ophthalmologic trials, where different types of observations are made on each eye, the assumption that data within cluster are exchangeable is often very reasonable. We use this assumption to formulate fully parametric regression models for clusters of bivariate data with binary and continuous components. The regression models proposed have marginal interpretations and reproducible model structures. Tractable expressions for likelihood equations are derived and iterative schemes are given for computing efficient estimates (MLEs) of the marginal mean, correlations, variances and higher moments. We demonstrate the use the ‘exchangeable’ procedure with an application to a developmental toxicity study involving fetal weight and malformation data. 相似文献
27.
The present article establishes equivalence between extended group divisible (EGD) designs and designs for crop sequence experiments. This equivalence has encouraged the agricultural experimenters to use EGD designs for their experimentation. Some real life applications of EGD designs have been given. It has also been shown that several existing association schemes are special cases of EGD association scheme. Some methods of construction of EGD designs are also given. A catalogue of EGD designs obtainable through methods of construction along with efficiency factors of various factorial effects is also presented. In some crop sequence experiments that are conducted to develop suitable integrated nutrient supply system of a crop sequence, the treatments do not comprise of a complete factorial structure. The experimenter is interested in estimating the residual and direct effect of the treatments along with their cumulative effects. For such experimental settings block designs with two sets of treatments applied in succession are the appropriate designs. The correspondence established between row–column designs and block designs for two stage experiments by Parsad et al. [2003. Structurally incomplete row–column designs. Comm. Statist. Theory Methods 32(1), 239–261] has been exploited in obtaining designs for such experimental situations. Some open problems related to designing of crop sequence experiments are also given. 相似文献
28.
29.
Jagdish Gundara 《Intercultural Education》2000,11(2):127-136
Religions in the contemporary world are Janus-faced institutions. They have the potential of being positive forces but also the capacity of being negative forces. Educators can use the positive aspects and dimensions of religion to foster interfaith and intercultural understandings. In this respect, educators can use the human rights instruments that most nations have approved to ensure that the legal and secular basis of the state provides safety and security to all faiths. This paper discusses these issues and the role of intercultural education in facilitating interfaith education and understanding. 相似文献
30.