做好资料工作 提供优质服务

随着社会主义有计划商品经济不断发展,统计资料信息对于社会经济发展的促进作用日益明显,从领导决策到社会公众对统计资料的需求日益增大。在这种形势下,如何提高统计资料工作优质服务水平,近两年来,我们做了一些工作,主要体会和做法是:一、树立三个观念,实现四个转变三个观念是统计信息主体观念、统计信息反馈主     

积极营造文化氛围扎实推进统计创新

本文结合统计工作特点和宁波区域特征,从观念理念、制度机制和深化实践三个层面简要介绍我局在创新文化建设方面所作的思考与探索.     

树高职品牌 拓展就业空间——我院就业工作现状及对策分析

本文对社会就业形势及我院毕业生就业工作状况展开分析,从社会、学院、学生个人等三个方面分析了影响高职生就业的因素,从学院角度提出了加强教学改革、提高就业质量、打造学生品牌竞争力等对策。     

论统计专业学生信息素质的培养

信息社会的到来,使统计工作的环境、方式和内容都产生了相当大的变化,对统计人才提出了更高的要求。为了适应信息时代的要求,统计专业的学生应注重信息素质的培养。本文从培养的目标、培养内容和培养方法三个方面论述了统计专业学生信息素质的培养。     

高职院校统计教学应注重学生能力的培养

高职院校的统计教学应注重学生的动手和动脑能力的培养,本文从高职院校统计教学中学生动手和动脑能力的培养角度出发,提出了动手技能和思维能力培养的对策。     

对统计教学创新的思考

培养学生的创新能力是统计教学的关键。在统计教学中应围绕教学目标,重点从教学观念、教学内容、教学方法和手段、考试方式等方面进行创新,以培养学生分析问题和解决问题的能力。     

对高职统计教学改革的再思考

本文针对高职统计教学培养的目标及存在的问题,从教学内容、教材、实践及师资等四个方面提出了改革的意见。     

对统计素养及其培养的理性思考

1 统计素养的定义及内涵 什么是统计素养,目前还没有统一的公认的准确定义.从现阶段国内研究文献来看,比较有代表性的观点是浙江工商大学李金昌教授给出的定义,即统计素养就是人们掌握统计基本知识的程度、统计理论方法水平及运用统计方法解决现实问题的能力和所具有的统计世界观,包括统计知识(统计基本素养)、统计方法(统计专业素养)和统计观念(统计思想素养)三个维度,其中统计知识是基础、统计方法是关键、统计观念是核心.     

浅议在统计教学中增设模糊统计的必要性

本文从统计学研究客体的本质属性、统计认识的辩证系统性以及统计分析技术的多样性三个方面分析了在高校统计教学中增设模糊统计的必要性。     

深化统计改革路在何方

十多年来,统计改革取得了一定成就,但出现了一些深层次的问题和矛盾。深化统计改革究竟路在何方？我认为必须遵循“三个有利于”标准,努力解决好以下三个问题：一、努力实现统计工作四个转空。（－）要实现从为计划经济服务转向为国家宏观经济管理服务。我国现行的统计制度方法基本上是按计划经济体制要求建立的,主要任务是为国家编制、检查计划服务。但随着市场经济的建立,政府职能转变,政府对企业实行间接管理,统计工作必须打破旧的观念,为市场经济和国家宏观调控服务。（二）要从报告型向管理型统计转变。统计工作长期来基本停留…     

Efficiency of nonparametric tests for scale shift at an unknown time point

Recently Hsieh considered three nonparametric tests for the scalechange problem and showed them to be asymptotically as efficient as their parametric competitors. Here the class of so called sum-type statistics is studied which contains the statistics of Hsieh. It is proved that max-type statistics can be constructed that are at least as efficient in the sense of Bahadur as the sum-type statistics.     

On the determination of mixing density in reliability studies

In reliability studies the three quantities (1) the survival function, (2) the failure rate and (3) the mean residual life function are all equivalent in the sense that given one of them, the other two can be determined. In this paper we have considered the class of exponential type distributions and studied its mixture. Given any one of the above mentioned three quantities of the mixture a method is developed for determining the mixing density. Some examples are provided as illustrations. Some well known results follow trivially.     

Efficiency of nonparametric tests for scale shift at an unknown time point

Recently Hsieh considered three nonparametric tests for the scale-change problem and showed them to be asymptotically as efficient as their parametric competitors. Here the class of so called sum-type statistics is studied which contains the statistics of Hsieh. It is proved that max-type statistics can be constructed that are at least as efficient in the sense of Bahadur as the sum-type statistics.     

统计专业的新观念

The article discusses the phenomenon that statistical profession is not paid great attention to and even not understood by the public. Through some examples of social activity, teaching and statistical application the author proposes some measures and thinking that can take to improve public awareness to the cause of statistics through three forms of efforts including changing the public’s sense of statistics, actively spreading the techniques of applied statistics and strengthening propaganda to statistics.     

Past and recent attempts to model mortality at all ages

"Most laws of mortality are partial in the sense that they apply only to a broad age group and not to all ages. This paper focuses on three laws of mortality that apply to all ages. Two of them were developed by the actuaries Thiele and Wittstein in the late 19th century. The third, developed by Heligman and Pollard, is of recent origin. The three laws are discussed with references to Scandinavian mortality data. The results suggest that the most recently proposed law can be used for generation of model life tables, for making population projections, simulations, and other statistical work where there is a need for a realistic model of human mortality."     

Infinite Variation Tempered Stable Ornstein–Uhlenbeck Processes with Discrete Observations

We investigate transition law between consecutive observations of Ornstein–Uhlenbeck processes of infinite variation with tempered stable stationary distribution. Thanks to the Markov autoregressive structure, the transition law can be written in the exact sense as a convolution of three random components; a compound Poisson distribution and two independent tempered stable distributions, one with stability index in (0, 1) and the other with index in (1, 2). We discuss simulation techniques for those three random elements. With the exact transition law and proposed simulation techniques, sample paths simulation proves significantly more efficient, relative to the known approximative technique based on infinite shot noise series representation of tempered stable Lévy processes.     

Testing for lack of fit in regression - a review

Assessment of the adequacy of a proposed linear regression model is necessarily subjective. However, the following three criteria may warrant investigation whether the distributional assumptions for the stochastic portion of the model are satisfied, whether the predictive capability of the model is satisfactory, and whether the deterministic portion of the model is adejuate in a statistical sense. The first two criteria have been reviewed in the literature to some extent. This paper reviews statistical tests and procedures which aid the experimenter in deterrmining lack of fit or functional misspecification associated with the deterministic portion of a proposed linear regression model.     

Testing non-inferiority and superiority for two endpoints for several treatments with a control

Some multiple comparison procedures are described for multiple armed studies. The procedures are appropriate for testing all hypotheses for comparing two endpoints and multiple test arms to a single control group, for example three different fixed doses compared to a placebo. The procedure assumes that among the two endpoints, one is designated as a primary endpoint such that for a given treatment arm, no hypothesis for the secondary endpoint can be rejected unless the hypothesis for the primary endpoint was rejected. The procedures described control the family-wise error rate in the strong sense at a specified level α.     

Smooth Tests of Copula Specifications

We present a family of smooth tests for the goodness of fit of semiparametric multivariate copula models. The proposed tests are distribution free and can be easily implemented. They are diagnostic and constructive in the sense that when a null distribution is rejected, the test provides useful pointers to alternative copula distributions. We then propose a method of copula density construction, which can be viewed as a multivariate extension of Efron and Tibshirani. We further generalize our methods to the semiparametric copula-based multivariate dynamic models. We report extensive Monte Carlo simulations and three empirical examples to illustrate the effectiveness and usefulness of our method.     

中国企业员工体面劳动感知的结构研究

体面劳动是政府和劳动者共同追求的重要社会发展目标,但目前学术界对体面劳动的探讨更多局限于物质环境层面,尚未上升到劳动者的心理感知层面。结合国内外相关研究,采用定性与定量相结合的方法,编制了中国企业背景下员工体面劳动感知问卷,探索员工体面劳动感知的内在结构。研究表明:员工体面劳动感知由工作权益体面感、工资收入体面感、工作氛围体面感、企业形象体面感、工作时间体面感、工会维权体面感等六因素构成,并且员工对该六因素的关注度呈递减趋势,说明在中国社会发展的不同时期,员工对体面劳动的关注点存在差异;同时,员工体面劳动感知问卷先后通过了探索性因子分析和验证性因子分析的信度效度检验,表明问卷是稳定可靠的。