查询词典 statistic hypothesis testing

However, the actual conditions in the market incompletely support this hypothesis. So, we turn to research the statistic distribution traits of the yield under different market conditions. To develop the investigation on securities' investment combination according to the distribution characters of conditional yield will make its actual application closer to the market facts.

然而，实际的市场情况并不完全支持这种假设，因此，我们转而研究不同市场条件下的收益率统计分布特征，根据条件收益率的分布特征进行投资组合理论研究，将使其实际应用更加贴近市场实际。

Study of segmentation of surveillance objects with motionThe camera noise statistical characteristic is approximated as Gauss or Laplace distribution, then an error probability is set and a threshold is determined. According to the hypothesis test theory, a constructed statistic can judge whether an object is moved or not.

二、以运动物体作为监控对象的分割研究将噪声分布近似为Gauss分布或Laplace分布，再设定误判概率进而确定一个阈值就可以利用假设检验的思想，构成统计量对不同对象判断其运动与否。

It is shown that the asymptotically limiting distribution of the residual cusum test statistic is still the sup of a standard Brownian bridge under null hypothesis.

研究表明如果原假设条件成立，则残量累积和统计量的渐近极限分布仍然是一个标准布朗桥的上确界。

To test the four hypothesis,a positive study is conducted using the 93 private listed companies which are all listed before 2002 on China's A share market. Both the descriptive statistic analysis and regression test were carried out from two angles: direct control and indirect control.

为了对假设进行验证，我们整理选取了2001年年底之前在国内上市的93家纯A股民营上市公司为样本，以2002年至2004年为数据窗口，从直接控制和间接控制两个角度对其股权结构和经营绩效之间的关系进行了描述性统计和回归检验。

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。

An alternative to the classical approach : If the calculated t statistic is used as critical value, what is the smallest significance level at which the null hypothesis would be rejected

另一种想法：如果将算得的t 统计量作为临界值，那么使得零假设被拒绝的最小显著水平是多少？

After descriptive statistic, we used reliability analysis, confirmatory factory analysis, correlation analysis, regression analysis and structural equation model to test the hypothesis of this research.

在对数据进行描述性分析之后，本文主要采用信度分析、效度分析、多元线性回归分析以及结构方程建模等方法对研究假设进行检验。

In the entire mathematical statistic, hypothesis test is a very importants and valuable part, but it exists the risk of committing two kinds of errors.

在整个数理统计中，假设检验是一个很重要很有应用价值的部分，但假设检验中存在着犯两类错误的风险。

A hypothesis is presented in the second chapter of this discourse based on the theory of F/M, to improve the unit's capability of phosphorus removed by advisably increase the value of F/M, and this hypothesis is proved to be practically feasible by a model experiment.

本文第二章从对F/M的理论分析出发，提出了在原有一体化氧化沟参数水平上适当地提高污泥负荷来实现提高除磷能力，使出水COD、TN、TP等指标全面达标的设想，通过模型试验证明这样的设想使切实可行的。

Conventional education started from a theory to another, from one hypothesis theories to an alternative hypothesis.

常规教育开始，从一个理论到另外一个理论，从一个假设到另一个假设。

Don't listen to their haver, nothing of that sort.

别听他们胡说八道，根本就没那回事。

But bank's shares trade below their book value, suggesting that investors are skeptical.

但是，银行股票以低于账面价值的价格交易，这一点反应了投资者的怀疑。