假设检验

Based on such literatures, this paper categories the methods into three kinds: hypothesis test, regression analysis, and intervention analysis, introduces and reviews the principle, procedures, or basic model specifications, and concerned researches of the three-kind methods perspectively.

本文以文献分析为基础，将这些方法归结为假设检验、回归分析和干预分析三大类，结合有关文献分别评述了三类方法的原理、程序或基本模型及其应用。

In this approach, double-differenced dual-frequency phase measurements and the known coordinates of reference stations as well as the precise ephemeris are used to rebuild observation equation, and then a Kalman filter is designed for the parameters estimation, i.e. ionosphere delay etc.

该算法使用双差双频相位、参考站精确的坐标和精密星历构造观测量，并用卡尔曼滤波来估计电离层参数，在给定显著水平的情况下，可以使用单个或少量历元以假设检验的方法探测和修复周跳。

Then the evaluation results of the water quality of an example showed that the posterior probability of factors are over 90% and have a significant impact on the identification and classification.

应用逐步判别分析法对水质进行评价因子筛选，通过对水质实际监测因子的假设检验分析，引入判别能力好的因子，建立判别方程。

The result of probability distribution in the paper is consistent with outcome of Hypothesis test, so verify the assumption of PERT technology is objective.

本文求解出的概率分布结果与数理统计中假设检验的求证结果一致，从而验证了PERT技术的概率分布假定是符合客观实际的。

Content includes probability, statistical distribution, sampling, estimation, hypothesis testing, regression, multiple regression, and random process.

主要内容包括：概率、统计分布、抽样、估计，假设检验、回归、多元回归和随机过程等。

This course is a self-contained introduction to statistics with economic applications. Elements of probability theory, sampling theory, statistical estimation, regression analysis, and hypothesis testing.

这是一门独立的统计学导读课程，适用于经济学，要点包括概率论，抽样理论，统计估计，回归分析和假设检验。

The content includes: sources, collection and tabulation of data, description of characteristic of data distribution, probability, sampling method, regression and correlation, hypothesis testing, time series and index number.

主要内容包括：统计数据的收集与整理，数据分布特征的描述，抽样的基本理论与方法，相关分析与回归分析，假设检验的基本理论与方法，时间数列分析，统计指数。

And the rarefaction wave of small leakage is diagnosed by means of hypothesis test method and fuzzy mathematics theory.

它采用双扭环技术和GPS时钟同步技术实现对传统负压波诊断系统的改进，采用假设检验和模糊数学理论对小泄漏故障负压波进行诊断。

On this basis, we can calculate determination coefficient and complex correlation coefficient, and do the test of Significance of regression equation.

在此基础上也可递推计算决定系数、复相关系数等，并进行回归方程的假设检验。

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。

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。