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41.
In this paper, we consider the estimation of the stress–strength parameter R=P(Y<X) when X and Y are independent and both are modified Weibull distributions with the common two shape parameters but different scale parameters. The Markov Chain Monte Carlo sampling method is used for posterior inference of the reliability of the stress–strength model. The maximum-likelihood estimator of R and its asymptotic distribution are obtained. Based on the asymptotic distribution, the confidence interval of R can be obtained using the delta method. We also propose a bootstrap confidence interval of R. The Bayesian estimators with balanced loss function, using informative and non-informative priors, are derived. Different methods and the corresponding confidence intervals are compared using Monte Carlo simulations. 相似文献
42.
Social Indicators Research - An understanding about the dynamics of social protection spending is made in the context of structural and institutional performances. A dataset of 134 countries for... 相似文献
43.
Theory and Society - This article examines the connections among heuristics, the epistemological and ontological presuppositions that underlie theorizing, and substantive explanations in sociology.... 相似文献
44.
An intraclass correlation coefficient observed in several populations is estimated. The basis is a variance-stabilizing transformation. It is shown that the intraclass correlation coefficient from any elliptical distribution should be transformed in the same way. Four estimators are compared. An estimator where the components in a vector consisting of the transformed intraclass correlation coefficients are estimated separately, an estimator based on a weighted average of these components, a pretest estimator where the equality of the components is tested and then the outcome of the test is used in the estimation procedure, and a James-Stein estimator which shrinks toward the mean. 相似文献
45.
46.
Iftekhar Ahmed 《Habitat International》1998,22(4):355-374
Traditional rural housing is largely based on the use of locally available natural resources as prime building materials, usually in a process of self-help building undertaken by the community. Such housing is well adapted to a natural environment with widely available resources, and supports people's direct involvement in the construction of their dwellings. However, the advent of a cash economy and current scarcity of natural resources has greatly affected the self-help building process. In rural Bangladesh, affluent households are shifting to manufactured materials and skilled builders, and the quality of housing of low-income households is declining. For the latter, self-help is the only option, and recognition of this fact and of the increasing decline in the quality of their housing has prompted institutional intervention. This paper discusses the Grameen Bank's rural housing programme in Bangladesh which provides loans for manufactured building components for low-income rural households to build houses on a self-help basis. A review of this programme indicates some of its strengths and shortcomings in the context of scarcity of natural building materials and widespread poverty. 相似文献
47.
48.
In this paper, we introduce a new problem of simultaneous estimation of means of two quantitative sensitive variables by using only one randomized response another pseudo response from a respondent in a sample. The proposed estimators are extended to stratified random sampling, and the relative efficiency values are computed for equal, proportional, and optimum allocation with respect to the newly introduced naïve estimators. 相似文献
49.
Ijaz Iqbal M.H. TahirM.L. Aggarwal Asghar AliIftikhar Ahmed 《Journal of statistical planning and inference》2012,142(3):626-632
A generalized neighbor design relaxes the equality condition on the number of times two treatments as neighbors in the design. In this article, we have considered the construction of some classes of generalized neighbor designs with block size k=3 by using the method of cyclic shifts. The distinguishing feature of this construction method is that the properties of a design can easily be obtained from the sets of shifts instead of constructing the actual blocks of the design. A catalog of generalized neighbor designs with block size k=3 is compiled for v∈{5,6,…,18} treatments and for different replications. We provide the reader with a simpler method of construction, and in general the catalog that gives an open choice to the experimenter for selecting any class of neighbor designs. 相似文献
50.
Linda Turner Ahmed Bawa Kuyini Savana Sabine Agustine Sally Hunter 《Australian Social Work》2013,66(2):259-270
AbstractMany social workers are expected to work with individuals and families who are dealing with life-limiting illnesses, yet during their university education they may not have been exposed to materials that address issues related to death and dying. The Social Work Department of University of New England in Armidale, Australia designed and delivered a palliative care teaching and learning session using publicly funded online materials. Themes emerging from questionnaire and focus group data analysis included appreciation for the importance and emotional demands of the materials, sensitivity and flexibility among educators who ideally have work experience in the field, expanding presence of social work philosophy in curriculum materials and exploring spirituality, and examining culture-informed practice in greater depth. Among the implications is the need for concerted efforts to teach about death and dying using high quality accessible materials, while ensuring social work values and approaches are reflected in the content. 相似文献