假设检验

It analyzes the sample through statistical way and hypothesis tests which discuss the mechanism and the way that lead to earnings management in A-share IPO firms.

对104家样本数据进行了定量的统计分析和假设检验，利用理论和实际相结合的方式系统阐述了IPO公司盈余管理的形成和实现方式，最后对于证券监管体系包括有关公司、证券法规、会计准则和会计制度，注册会计师审计，证券监管部门等提出相应的建议。

The statistical tools considered were the analysis of the numerical conditioning of the neural network candidates, statistical hypothesis tests, and cross validation.

在关于非线性模型估计和选择的文献中，人们能找到许多用以处理这类问题的统计学方法，如假设检验、信息指标，或交叉验证。

Committing to a significance level ahead of time can hide useful information about the outcome of a hypothesis test.

提前确定显著水平可能会隐藏关于假设检验的一些有用信息。

Based on typical stochastic functional and combinatorial optimization problems, the effects of hypothesis test, performance estimation number and magnitude of noise on the performance of the approach are studied, and the effectiveness and robustness of the proposed approach are demonstrated.

基于典型的随机函数优化和组合优化问题，仿真研究了假设检验、性能估计次数、噪声幅度对算法性能的影响，验证了所提方法的有效性和鲁棒性。

Truth Table -- Demonstrates the result of errors in hypothesis testing by comparing the truth with the findings, based on the statistics.

真值表 --在假设检验中将计算出的统计量和真值比较表示实际结果的误差情况，如果与真值不符，表示出现了误差。

And usually this method will suffice to typify all the rest, and not only can we easily solve the problems of calculating statistics of mathematical statistics in this way, but also a large number of sophisticated data can be avoided in the mathematical statistics teaching.

在方差分析中，无论是单因素还是双因素分析，基本思想方法和基本概念都是很清楚的，学生在经过参数的区间估计、点估计和假设检验的学习之后，对这些概念的掌握应该是顺理成章的事。

Major topics covered are: basic concepts of probability, sample space and events, axioms of probability, random variables, discrete and continuous distributions, joint and marginal distributions, numerical characteristic for random variables, the weak law of large numbers, central limit theorem, basic concepts of statistics, parameter estimate, hypothesis testing and regression analysis.

本课程的基本内容有：随机事件及其概率、随机变量及其分布、多维随机变量及其分布、随机变量的数字特征、大数定律与极限定理、数理统计的基础知识、参数估计、假设检验、回归分析。

With the SPSS 11.0 statistic software, correlation ^egression and curve estimation analysis have been carried out on Guangzhou Ports cargo sources and production capability. At 95% confidence, it comes such a conclusion that Guangzhou Port has sufficient cargo sources but will become incapable in production.

案例分析围绕港口生产发展速度下降的原因展开调查，并应用 SPSS11.0统计软件包，对广州港货源和生产能力情况进行相关分析、曲线拟合分析和假设检验，在5％置信度上得出&广州港货源充足但港口生产能力不足&的结论。

On the basis of the theoretic analysis, this paper regards to the swatch of the listed corporate of our country in Shanghai Stock Exchange from 2002 to 2004, and sets up the model by linear regression and non-linear regression to analysis the listed company performance index sign and the financing structure, and carries through supposing examination, draws the conclusions:(1) The creditor's rights takes on the characteristic of a soft control and infirmness in the Chinese listed company governance, without bringing into play an obligatory function, the liability financing exists the best financing zone.

在理论分析的基础上，本文以2002―2004年度我国沪市上市公司为样本展开实证研究，采用线性回归和非线性回归、一元回归和多元回归等多种方法建立模型，进行上市公司绩效指标与融资结构的回归分析，并进行假设检验，得出如下结论：(1)债权在中国上市公司治理中表现出软约束和弱化的特征，没有发挥出应有的作用，债权融资存在最优融资区间。

In this paper,a revised universal soil erosion e-quation was selected, the effects of errors of this neglection on it were tested by non-parametric hypothetical test method of Kolmogorov-Smirnov for a 22-year period within 21 catchments of the middle Huanghe River region,and the resul...

采用非参数假设检验方法，对年产沙模数估计方程中下垫面因素的时变影响作定性分析，结果表明，对于一般流域，如果没有人类活动或自然灾害破坏导致下垫面条件的突变，下垫面因素对产沙的影响可看作是时不变的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。