统计假设检验

For these important and practical problems,sample covariance matrix is an important statistic because many important statistics are functionals of it.When we make statistical inferences,such as estimations and/or hypothesis tests,the sample covariance matrices must be investigated.

以上诸多方面在做估计和假设检验过程中，无不用到大维随机矩阵的处理，尤其是大维样本协方差矩阵的相关性质，因为多元分析中许多重要的统计量都可以表示成样本协方差矩阵的函数。

Hypothesizes test, sequential methods and statistical decision are synthesized to improve sequential probability ratio test, one of the statistical signal processing methods.

为了得到合适的信号处理方法，综合了假设检验、序贯分析及统计决策理论对本不适于泄漏判断的序贯概率比检测进行了改进。

Data, Analysis, Results - Our writers always make it a point to include all pertinent numerical data useful in statistical analyses to support hypothesis testing.

数据，分析，结果-我们的作家总是强调要包括所有相关的统计分析有用的数值数据支持假设检验。

On the base of reviewing the empirical research on the relationship between the executive and corporation performance home and abroad, the article studies the relationship between the executive incentive and corporation performance of Chinese corporations, using statistical des cription analysis and hypothesis testing analysis.

本文在对国内外经营者薪酬与企业绩效实证研究回顾的基础上，采用描述性统计分析和假设检验分析对我国上市公司经营者与企业业绩之间的关系进行实证研究。

With this normal approximation, standard processes for statistical inferences such as hypothesis testing and confidence interval are developed for testing whether the process is capable and providing an interval estimate on CpkT, respectively.

我们也以理论证明的方式找出估计量的常态近似分配，透过常态近似分配，统计假设检定、信赖区间、信赖下限都可以用来检验制程是否是有达到特定的标准。

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. Then, some improvement has been put forward including rule of law, accounting standard and accounting system, auditing etc.

对样本数据进行了定量的统计分析和假设检验，从理论和实际相结合的方式系统的阐述了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若干意见。

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。

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。

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。

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。