- 更多网络例句与显著性检验相关的网络例句 [注:此内容来源于网络,仅供参考]
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Then the listed companies having the corrections of accounting errors in the period from 1999 to 2004 were collected as research sample. Then the incidence which spurred the listed companies adjust errors in time was testified by methods of mean value test and multivariate linear regression. The major empirical results are summarized below: the inspection of The China Securities Regulatory Commission, other supervision outside and income quality correlated positively with it. The effect on profits correlated negatively with it. The hypothesis of the CPA firm change and assets-liabilities ratio didn't correlate with it.
然后选取了1999-2004年披露了会计差错更正的深沪上市公司作为研究样本,运用均值检验和Logistic回归方法考察了上市公司立即更正会计差错的动因,实证研究结果表明:证监会的检查、其他外部监管、收益质量与会计差错的立即更正正相关,损益影响程度与会计差错立即更正负相关,而事务所的变更假设和资产负债率假设未能通过显著性检验。
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To analyse the signal test, binomial probability law was used for significance testing of signals in the images emitted from human hand in different period of time, which proved that human hand can emit ultra-weak bioluminscence, the photon inensity emitted from fingers is in the range of 300~550 photons/s and the whole hand in 850~1200 photons/s.
为分析图像中的信号检验,二项分布被用于人手不同时间累积发光图像中的信号显著性检验,证实人手存在超微弱生物发光,手指的发光强度在300~550photons/s范围内,全手的发光强度在850~1200photons/s范围内。
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Events,Operation and Relation of Sets, Classical Probability, Geometrical Probability , Statistical Stability of a Frequency, Axioms of Probability, Conditional Probability, Total Probability Theorem, Bayes' Rule,Independent Events,Independent Repeated Trials, One Dimensional Random Variables, Discrete Random Variables, Distribution Function of a Random Variables , Continuous Random Variables, Normal Distribution, Distribution of a Function of a Random Variable, Multidimensional Random Variables, Joint Distribution Function, Marginal Distribution Function,Discrete Two—Dimensional Random Variables,Continuous Two—Dimensional Random Variables, Independent Random Variables, Distribution of Functions of Random Variables,Expectation,Variance, Covariance, Coefficient of Correlation, Bivariate Normal Distribution, Law of Large Numbers, The Central Limit Theorems, Sample and Population ,Chi—Squared, T and F Distributions , Sampling Distributions , Point Estimation , Interval Estimation , Testing Hypotheses , A Test of Significance for Parameters in a Single Sample From a Normally Distributed Population , A Test of Significance for Parameters in Two Sample From Normally Distributed Populations .
本课程的主要内容:概率的概念与运算、随机变量及其分布、随机变量的数字特征与极限定理、数理统计的基本概念、估计和检验的基本方法,随机事件与概率随机事件、事件的关系与运算、几何概率、统计概率等,条件概率、全概率公式、贝叶斯公式、事件的独立性、二项概率公式,随机变量的概念、离散型随机变量、随机变量的分布函数、连续型随机变量、随机变量函数的分布,多维随机变量及其分布函数、边缘分布函数、随机变量的独立性、二维随机变量函数的分布,数学期望、方差、协方差和相关系数、大数定律、中心极限定理,总体与样本, X 2-分布、 t-分布和 F-分布,统计量及抽样分布,假设检验的基本概念、单个正态总体参数的显著性检验、两个正态总体参数的显著性检验。
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The mean coefficient of variation for intra and inter batch-assay were less than 10% and 15% respectively.
显著性检验为t检验,批内CV 0 %,批间CV 5 %。
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Summary receiver operating characteristic analysis demonstrated better discriminatory power for MRCP than for US and CT, and better discriminatory power for US than for CT.
同时按病变部位、性质分别计算MRCP、US及CT的敏感度、特异度和似然比等指标,比较显著性检验统计学方法采用χ〓检验或精确概率法,p<0.05为有显著性差异。
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The F test is just the overall significance test.
F检验就是全局显著性检验,由于F(6, 1184)=0.84,且
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In the second place, this paper uses the financial data reported by China's private listed companies and statistical analysis skills to test the theories and hypotheses. The research collects all required data from 2000 to 2002, examines the profit ability, the gain ability, the repay ability, and the cost control ability for all sampling listed companies by using Paired-Samples T test in the quantitative analysis section. The results show that these listed companies'profit decreases, income increases, repay ability enhances after the companies go public. Finally the paper takes the non-operating expenses as the illustrating index for the cost control capability of the companies to demonstrate that there is an obvious increase of non-operating expenses after getting great amount of money in IPO, in this sense it can be stated that there is the intendancy of low capital utility rate in private companies.
研究选用了描述性统计分析方法对样本企业IPO前后时段的财务指标进行了对比考查,并运用配对样本t检验方法进行了显著性检验,研究结果表明民营企业在IPO前后的盈利水平总体上是显著下降的;同时研究也显示虽然获利水平出现了小幅上升,但这是由于企业通过IPO融资增加了投资规模导致的;企业的偿债能力在IPO之后有明显的好转;研究最后以营业外支出作为企业成本控制能力的解释指标,发现企业在IPO上市融得大量资金后对主营业务以外的支出有明显的增多,可以判断民营企业存在资本利用效率低下的现象。
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An algorithm of cluster analysis with statistic significance test to classification was developed in this paper.
鉴于此,本研究用随机化方法对分类进行统计显著性检验,建立了具有统计显著性标记的聚类分析算法,用于对若干个样品进行有显著性标记的聚类分析。
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The positive test draws the following conclusions: control rights is significantly negatively related with firm value which indicates that the bigger control rights the actual controller hold, the lower firm value is; cash flow rights is significantly negatively related with firm value which may due to the ravening share bonus deeds by controlling shareholder; the separation ratio of cash flow rights to control rights is negatively related with firm value and not significant which may due to the ravening share bonus deeds,or the deficient market, or inadequate information exposure etc; stock proportion restriction is significantly positive related with firm value which indicates the good effect of stock proportion restriction; actual controller who participate in the management and the ratio of director who have position in controlling shareholder's company don't pass the significant test; the size of the company is significantly negatively related with firm value; the ROE cannot explain the firm value.
通过实证检验发现,我国金字塔结构下民营上市公司的治理效应有以下特征:控制权与公司价值显著负相关,说明实际控制人掌握的控制权越大,公司价值越低;现金流权与公司价值显著负相关,这可能与我国民营上市公司控股股东的"掠夺性分红"行为有关;现金流权与控制权的分离率和公司价值负相关且未通过显著性检验,这可能与控股股东的"掠夺性分红"行为有关,也可能与市场的不完善、信息披露的不充分等有关;股权制衡度与公司价值显著正相关,说明我国民营上市公司的股权制衡机制能够产生一定程度的效果;实际控制人参与管理情况与在控股股东单位任职的董事比例和公司价值的关系均未通过显著性检验;公司规模与公司价值显著负相关;ROE对公司价值没有解释力。
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A mathematic model,which deals with the relationship between maximum temperature of thick plate butt multipass welding and weld heat input,interpass temperature,ambient temperature and the distance of measuring points to heat source center,was founded using multivariant nonlinear regression analysis.
采用多元非线性回归的方法,建立了厚板对接多道焊的最高温度与焊接线能量、层间温度、环境温度以及测点到热源中心的距离之间的数学模型。通过相关性检验、线性回归的显著性检验以及回归系数的显著性检验,证明了模型可行;同时分析了回归系数与测点到焊缝中心距离之间的关系。结果表明,它们之间的关系是一种非线性关系,而且呈现出了一定的变化趋势
- 更多网络解释与显著性检验相关的网络解释 [注:此内容来源于网络,仅供参考]
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Score test:计分检验
直接概率法 分布检验 率差的显著性检验可以利用的四格表资料的卡方检验 四格表资料的卡方检验对 SMR 或 SPMR 的检验 的检验,实际是所得结果值偏离 1 的检验,其检验方法可用 X2 检验或计分检验 检验或计分检验(score test).
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significance level:显著性水平
一般双侧检验比单侧检验常用,同时还要确定检验的显著性水平 (significance level),一般常用0.05(或0.01),特别注意的是在进行两组的均衡性比较时,此时检验的显著性水平可取相对大一点,比如取=0.10(或0.20).
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significance level:显著性水准
然后用适当的统计方法计算某检验统计量,根据检验统计量的大小来推断此假设应当被接受或拒绝,它是统计推断的另一重要方面.检验水准(size of a test)亦称显著性水准(significance level),符号为α,即判断由H0所规定的总体中随机抽样,
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Significance test:显著性检验
在实际工作中往往难以实现;二是从总体中抽取一定数量的样本进行抽样研究,但要考虑抽样误差对结果的影响. 因此,若用样本信息去推断其所代表的总体间有无差别时,需要使用假设检验(hypothesis testing)或称显著性检验(significance test).
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sequential significance test:显著性序贯检验
serial correlation 序列关联 | sequential significance test 显著性序贯检验 | null hypothesis 零假设
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level of significance test:显著性检验水平
level of significance 显著性水平 | level of significance test 显著性检验水平 | leveling 平抑作用
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significance test of difference:差异显著性检验
significance test of change 改变的显著性考验 | significance test of difference 差异显著性检验 | significant change 显著变化
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significance:显著性
4.显著性(Significance)首次由Fisher在假设检验中提出.假设检验中有两种错误: 拒真和纳伪.显著性检验仅考虑发生拒真错误的概率,也就是考虑原假设的Significance的程度,把拒真的概率控制在提前所给定的阈值alpha之下,来考虑检验原假设是否正确.
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statistical significance:统计显著性
ce)和统计显著性(statistical significance)* 在进行差异显著性检验时,不能混淆实际显著性(practical significance)和统计显著性(statistical significance)样本的同质性(homogeneous)和异质性(heterogeneous)应当与总体相当在进行差异显著性检验时,
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significant difference:差别显著
significance test 显著性检验 | significant difference 差别显著 | simple random sampling 单纯随机抽样