查询词典 hypothesis test

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。

To test his hypothesis, Choe and his team put different chemicals on Argentine ant pupae.

为了验证这个假设，choe和他的小组在阿根廷蚂蚁和蛹上放了不同的化学成分。

In this paper, two tests are proposed to test the hypothesis with generalized p values and QR decomposition of design matrices.

本文利用设计阵的QR分解和广义p值，给出了一种精确的检验。

We designed and carried out a large, multicenter, randomized controlled trial to test the hypothesis that an alert from a hospital staff member to the attending physician will reduce the rate of symptomatic VTE among high-risk patients not receiving prophylaxis.

我们设立了一个大型多中心随机对照研究研究，来检验这样一个假说：来自以主治医生为主的医护人员的预警能减少未接受预防性治疗的VTE高危人群症状的出现率。

The Spearman Rank Correlation Coefficient and descriptive statistics were used to test the research hypothesis.

而研究的方法是以对美国运动竞赛推广组织之业主或管理人员进行问卷访谈，针对受访者所属的组织之中，使用网际网路之情况与其对於组织绩效的影响状况来分析其相互的关系。

Then, the paper used structural equation model and factor analysis to test the hypothesis and compare the relative modleFor the results in the study, first of all, papers have collated the theories relative to psychological boundary from three point of view, they were personality theory, social cognitive theory, self-category theory, social representation theory and system theory.

在研究成果方面，首先，论文在已有研究的基础之上，从三个方面整理出于心理边界相关的基础理论，它们分别是人格理论、社会认知理论、自我分类理论、社会表征理论和系统理论。

In this study, we utilized human periodontal ligament to test the hypothesis that cryopreserved human periodontal ligament contains retrievable post-natal stem cells.

我们在实验中利用人牙周膜来证实冷冻保存的人牙周膜中是否存在可收回的成体干细胞。

We conducted a greenhouse experiment to test this hypothesis by using invasive Solidago canadensis and native Kummerowia striata as model plant species under lead contamination.

本研究借助於温室试验，通过入侵物种加拿大一枝黄花和本地物种鸡眼草的单作和混植试验，证验了这一假说。

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。

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。