置信区间

How likely the interval is to contain the parameter is determined by the confidence level or confidence coefficient.

置信程度或置信系数决定了区间将在何种程度上涵括参数。

They also state a level of confidence for the interval, usually 90% or 95%.

他们还为国家一区间的置信水平，通常为90％或95％。

In this paper, we extend empirical likelihood to partial linear errors-in-variables model, a nonparametric version of Wilk's theorem is derived.

本文，我们把经验似然推广到部分线性度量误差模型，得到了非参数的Wilk's定理，我们的方法可以用来构建置信区间，也可以用来检验。

On account of the importance of this subject, there has been lots of research interspersing among textbooks and literatures, and some confidence intervals accepted by people have been given.

鉴于该问题的重要性，在教科书中，在文献中，对此问题已有很多研究与交待，并已提出了若干人们已达成共识的置信区间。

Theoretical investigations suggested that the major bottleneck in narrowing down the confidence interval of QTL location is the limited number of informative meioses obtainable in most mapping populations of traditional methods.

理论研究表明，传统方法中作图群体有限的有效减数分裂数是进一步缩小QTL置信区间的一个瓶颈。

Significantly lower scores were found with PSC opacities, with an overall adjusted mean difference of 6 points (95% CI: 3.3-8.8) for the composite score.

明显的低分数与后囊下白内障混浊相关，综合评分中的所有校正平均差为6分（95%置信区间3.3-8.8）。

The Hypo 1 was then validated by a test set consisting of 24 compounds and by a cross-validation of 95% confidence level through randomizing the data using the CatScramble program, which suggested that a predictive pharmacophore model had been successfully obtained.

利用24个抑制剂的结构与活性数据对该药效团模型进行了验证，并在95％的置信区间内对该模型的可靠性进行了交叉验证，数据显示我们建立了具有良好的预测能力的药效团模型。

Select the cases on annual August as the sam pling units, and divided those 253 cases into three decade groups, to analyze th e obsterical factors affecting the preterm delivery.

①30年早产发生率为4.72%(95%置信区间4.16，5.32)；②早产发生率不随年代发展出现明显变化，且无明显季节倾向性；③1 989～1998年度剖宫产率较1969～1978年及1979～1988年两个年度明显升高(P.05)。

Compared with the single-bounded questionnaire format, the double-bounded questionnaire format could obtain more information about the respondents' willingness to pay, hence, it reduces the confidence interval range and improves the estimation accuracy of the greatest willingness to pay. At the pilot practice for three continuous years, the percent of banana windstorm insurance pilot size in the total banana planting area was less than 10% in Hainan. Combined with this research result, the author holds that Hainan finance should strength the subsidy to banana windstorm insurance on the basis of 30% subsidy in two continuous years of 2007 and 2008, and the subsidy percentage should try to achieve 40%. At the same time, the premium rate should not be too low, 18% is suitable.

与单边界问卷格式相比，双边界问卷格式能够获得被调查者支付意愿的更多信息，从而缩小了估计的置信区间，提高了最大支付意愿的估计精度；在连续3年的试点实践中，海南香蕉风灾保险试点规模占其香蕉种植面积不足10%，结合本研究结果，笔者认为海南省财政应在2007、2008连续两年30%的财政补贴基础上进一步加大对香蕉风灾保险业的补贴力度，力争补贴比例达到40%左右，同时费率也不宜过低，宜保持在18%左右。

First,owing to the wide range of use of WeibuU distribution,we propose the Weibull MTD model,which has improved the MTD model based on Gaussian distribution in some thick-tailed cases;Second,some stationarity properties of the model are discussed;After that,we apply the standard EM algorithm to mixture models to get the estimation equations and then expose bootstrap method to calculate confidence region of the parameters;Finally,some simulations and an example are analyzed in detail,which show that when analyzing nonstandard date,such as financial date,insurance date and so on,it is more proper for estimation to use the Weibull MTD model than the Gaussian MTD model.

首先给出基于Weibull分布的混合转移分布模型的一阶与k阶平稳的充分必要条件；接着，应用EM算法，得到了参数的极大似然估计及它们的标准误差；然后，应用Bootstrap方法，得到了参数的置信区间；最后，通过模拟与实例分析，说明该模型在分析来自金融、保险等某些厚尾分布的数据时，在参数估计方面的表现优于高斯混合转移分布模型。

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。