查询词典 test of hypothesis

Sample size of 275 patients per arm would provide at least 90% power to test the null hypothesis.

在这里需要注意的一点是，样本量的计算是基于非劣效检验。

By using statistical tools, mainly both parametric and non-parametric hypothesis test, we try to answer some basic questions on the application flow classification methods, and further, try to convince the necessity and rationality of the network layer statistical flow classification approaches.

在第三章中，我们从真实网络的流量特性分析着手，从流量迹的采集生成、流量迹统计数据的总体分析和对不同应用协议数据流的统计特性分析等几个方面，结合对应用流分类方法的一些基本问题的回答，采用数理统计的有关工具，分析和论证了统计流分类方法的必要性和合理性。

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 order to make a comparison, the models of the other two methods like robust estimation and hypothesis test are also summarized. At last, one numerical example is given out to illustrate the feasibility and validity of this method.

为了便于比较，还简单介绍了常用的抗差估计及统计检验的数学模型，最后通过1个算例验证了本方法的可行性和有效性，并和另2种方法作了比较。

In §5.3,we discuss the hypothesis test problem of the scale parameter change point.

否则，接受原假设〓，认为不存在变点。上述两种检验，我们都给出了模拟结果。

According to hypothesis of intake average stationary flow, using experimental data on engine test stand, a hierarchical model is built up to use for steady-status air fuel ratio feed-forward control. Three-dimensional original control maps are produced by the model, and data generation problem of non-experiment operation condition points is solved.

4基于进气平均稳定流动的假设，利用发动机台架实验数据，建立了用于稳态空燃比前馈控制的递阶模型，并通过该模型生成三维初始控制脉谱图，解决了非实验工况点的数据产生问题。

This paper discribes some models of reliability and statistical test based on the stochastic process and the theory of statistical hypothesis, as well as the failure data of repairable system s.

根据随机过程与统计假设理论，在分析可修复系统故障数据特点的基础上，阐述了可修复系统故障数据的可靠性分析模型。

The security and reliability of the algorithm were implemented by using statistical hypothesis test for matching the reading sequence of sensors and statistical characters of the data fusion event.

该算法通过检验传感器本地采样值构成的时空相似度与传感器数据融合过程统计特征的符合程度，保证了数据融合路由的安全和可靠。

Based on results of change detection using statistical hypothesis test,the intensity,hue and saturation in the YCbCr color space are employed to recognize and eliminate shadows and .

在一种快速动态背景图像初始化的基础上，建立了Gaussian统计背景模型；基于使用统计假设检验方法检测变化区域的结果，利用YCbCr颜色空间的亮度、颜色信息，识别和消除视频序列图像中的阴影和反光等。

On the basis of statistical analysis to the 15 hypothesis of affecting factors, this research also uses the parallel testing method, which employed by the researchers of UCLES while they investigate the validity of contextualized test questions, for reference to give a making-up study to the affecting factors.

在量化统计研究的基础上，本研究又借鉴英国剑桥大学考试委员会的研究者在研究试题的情境化效度时所使用的对比测试研究方法，对部分影响因素作了进一步的补充研究，以探讨利用统计方法不能得到的一些规律。

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。