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91.
ABSTRACTIn this paper, we consider the best linear unbiased estimators (BLUEs) based on double ranked set sampling (DRSS) and ordered DRSS (ODRSS) schemes for the simple linear regression model with replicated observations. We assume three symmetric distributions for the random error term, i.e., normal, Laplace and some scale contaminated normal distributions. The proposed BLUEs under DRSS (BLUEs-DRSS) and ODRSS (BLUEs-ODRSS) are compared with the BLUEs based on ordered simple random sampling (OSRS), ranked set sampling (RSS), and ordered RSS (ORSS) schemes. These estimators are compared in terms of relative efficiency (RE), RE of determinant (RED), and RE of trace (RET). It is found that the BLUEs-ODRSS are uniformly better than the BLUEs based on OSRS, RSS, ORSS, and DRSS schemes. We also compare the estimators based on imperfect RSS (IRSS) schemes. It is worth mentioning here that the BLUEs under ordered imperfect DRSS (OIDRSS) are better than their counterparts based on IRSS, ordered IRSS (OIRSS), and imperfect DRSS (IDRSS) methods. Moreover, for sensitivity analysis of the BLUEs, we calculate REs and REDs of the BLUEs under the assumption of normality when in fact the parent distribution follows a non normal symmetric distribution. It turns out that even under violation of normality assumptions, BLUEs of the intercept and the slope parameters are found to be unbiased with equal REs under each sampling scheme. It is also observed that the BLUEs under ODRSS are more efficient than the existing BLUEs. 相似文献
92.
A lot of attention has been given to education as it is the most practical way of improving social mobility. In order to be
progressive and resilient, there has to be an overall transformation of society as evidenced in the annual budget allocations
which has educational implications to it. Therefore, schools will come to term that they are under the watching eyes of interested
parties who want them to perform academically. Thus, this will lead the stakeholders of education to make assessment and comparison
between schools. However, the process of assessing schools is not an easy task as it involves many attributes. The problem
of aggregating a large number of attributes will be a challenge if we use the traditional Multi Criteria Decision Making (MCDM)
method. Hence, in this paper an innovative approach called Evidential Reasoning (ER) will be used to assess school performance
in a multilevel or hierarchical setting which involved indirect measurement of quality by using standardized examination results,
rather than directly measuring the quality of the processes unfolding within the schools. The approach is different from most
conventional decision making modeling methods in that it employs a belief structure to represent an assessment as a distribution.
By using this method, we are able to assess and rank the schools involved by giving an appropriate weight and merit point
for each attribute and grade, respectively. For easy comprehension of the method, a numerical example was given on how to
utilize the proposed method in order to obtain a single performance figure for school ranking purposes. Finally, by comparing
the school ranking reveals that there is little similarity with the normal practice currently adopted. 相似文献
93.
In this article, we propose a method of planning and determining the optimum parameters of a SkSP-R skip-lot sampling plan by using the attribute double sampling plan as the reference plan. The SkSP-R plan is a new type of skip-lot sampling plan which has a provision for re-inspecting the submitted lots. The optimal plan parameters of the suggested sampling plan are estimated with the target that the average sample number be minimized and satisfying both the specified producer's as well as the consumer's risks simultaneously. In order to obtain the optimum parameters, tables are also built for different combinations of the acceptable quality level and the limiting quality level in conjunctions with different producer's and consumer's risks. An illustrative example is provided for the implementation of the suggested plan. The advantages of the suggested plan over the existing conventional sampling plans and other existing skip-lot sampling plans are also described. 相似文献
94.
Unlike the usual randomized response techniques, as a pioneering attempt, this article focuses on using non identical independent Bernoulli trials in sensitive surveys. For this purpose, a general class of randomized response techniques is considered. The usual randomized response techniques are based on a fixed probability of having a yes answer. Contrary to usual techniques, in the proposed technique every respondent has a different probability of reporting a yes answer. With this setting, in most of the situations, the proposed technique is observed performing better in terms of variability. To illustrate and support the superiority of the proposed technique it is compared with models such as Warner (1965), Greenberg et al. (1969), Mangat and Singh (1990), and Mangat (1994) using identical Bernoulli trials. Relative efficiency and privacy protection are studied in detail using Warner (1965) and Mangat (1994) models. 相似文献
95.
Abdul Haq 《Journal of Statistical Computation and Simulation》2017,87(2):313-327
Recently, a hybrid ranked set sampling (HRSS) scheme has been proposed in the literature. The HRSS scheme encompasses several existing ranked set sampling (RSS) schemes, and it is a cost-effective alternative to the classical RSS and double RSS schemes. In this paper, we propose an improved estimator for estimating the cumulative distribution function (CDF) using HRSS. It is shown, both theoretically and numerically, that the CDF estimator under HRSS scheme is unbiased and its variance is always less than the variance of the CDF estimator with simple random sampling (SRS). An unbiased estimator of the variance of CDF estimator using HRSS is also derived. Using Monte Carlo simulations, we also study the performances of the proposed and existing CDF estimators under both perfect and imperfect rankings. It turns out that the proposed CDF estimator is by far a superior alternative to the existing CDF estimators with SRS, RSS and L-RSS schemes. For a practical application, a real data set is considered on the bilirubin level of babies in neonatal intensive care. 相似文献
96.
Peter Aning Tedong Abdul Rahim Abdul Kadir Kazimah Roslan Linda A. Lumayag 《International migration (Geneva, Switzerland)》2018,56(5):151-166
Labour migration into Malaysia has increased rapidly in recent decades and this has affected Malaysia's government policy in managing migrants’ movement. Interestingly, Malaysia has attracted a high degree of unskilled labour, accompanied by unabated rise of undocumented migrant workers. Mitigating undocumented migration is the main aim of Malaysia's labour migration policy and therefore the focus of Malaysian government. This has impacted on how enforcement agencies work out strategies. These agencies are the forefront of Malaysia's labour migration policy but they faced a number of challenges, such as documentation, finance and manpower capability, and political intervention, which impede their ability to optimize their capabilities in enforcing the Malaysian government labour migration policy. Resolving these challenges and moving towards a long‐term labour migration policy will benefit the Malaysian state, its citizens and the labour migrants. 相似文献
97.
Demand shocks and employment adjustments: Does employment protection legislation create rigidity?
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Irfan Ahmad SOFI Mohd Hussain KUNROO 《International labour review / International Labour Office》2018,157(3):461-480
With state‐level panel data from the Indian manufacturing sector for 2000–12, and labour turnover as a proxy for employment adjustments, the authors estimate differential effects of demand shocks on employment adjustment across states with high and low levels of EPL. They find that EPL does not hinder employment adjustment; the response of labour separation rates to negative demand shocks is relatively higher in states with high levels of EPL, and labour turnover is inversely associated with EPL, which may be viewed as indicative of the beneficial effects of EPL for both enterprises and workers. 相似文献
98.
Ikram Ali Armando Barrientos Abdul Saboor Atta Ullah Khan Jazib Nelson 《Social indicators research》2017,132(1):47-61
The literature on subjective well-being has highlighted the negative effects associated with the restrictions and inequality imposed by the hukou system on China’s rural population. However, quantifying the cost of holding a rural hukou has generally been challenging because it can reflect unobserved individual characteristics related to educational and occupational choices. Thanks to RUMiC, a new longitudinal database on China, this limitation can be overcome by exploiting exogenous changes in hukou status due to land expropriation. The results support that receiving an urban hukou substantially enhances subjective well-being within the household, especially for males. The results complement a growing literature on subjective well-being focusing on China. 相似文献
99.
Noor Aisha Binte Abdul Rahman 《Journal of Muslim Minority Affairs》2014,34(1):45-65
This paper examines Singapore's partial reservations to Articles 2 and 16 of the United Nations Convention on the Elimination of Discrimination against Women (CEDAW). It contends that the reservations justified on the basis of protecting the rights of the Muslim minority community to practice its personal law has unwittingly impeded the potential of reviewing and addressing significant gaps and limitations in the ways in which the laws are conceived and administered. More pertinently, the policy reinforces the dominance of traditionalism in the thinking of dominant stakeholders of the law. Taking the standpoint that the values of equality and non-discrimination on the basis of gender espoused by CEDAW are compatible with the objectives of Muslim law, this paper maintains that ratifying the relevant Articles of CEDAW will strengthen the process of the development of the Muslim personal law and address essentialist presumptions of the law. This perspective departs from the dominant discourse on the Muslim law and CEDAW which is framed in terms of conflict and polarity between the law and human rights, religious law and women's rights, and universal values versus cultural relativism. 相似文献
100.
Shahrul Hussain 《Journal of Muslim Minority Affairs》2016,36(3):364-382
The growing presence of Muslims in the occident living as minorities in majority non-Muslim countries comes with inherent religious challenges. How can occidental Muslims live faithfully in cultures that cause perceivable “hardship” without compromising their religio-legal obligations? Is fiqh al-aqalliyāt the answer to this problem, if at all there is a problem? As a sample of the so-called “hardship”, this paper looks at the issue of occidental Muslims taking out ribā (interest or usury) based loans in order to buy a house, to test the theory of whether or not a new legal doctrine is required to facilitate Muslim needs facing exceptional circumstances. Is it a clash between classical and contemporary scholarship or an inevitable pre-modern evolution of Islamic jurisprudence? This article argues that juristic opinions, whether classical or contemporary do not justify any actions, because their opinions are first and foremost non-binding and secondly a result of their endeavor to come to an edict. The paper highlights a misapplication of juristic maxims and opinions, driven by zeal to provide an edict to justify the needs of some. It concludes that no added value is made to Islamic law by heterodox jurisprudence. 相似文献