区间估计

With this normal approximation, standard processes for statistical inferences such as hypothesis testing and confidence interval are developed for testing whether the process is capable and providing an interval estimate on CpkT, respectively.

我们也以理论证明的方式找出估计量的常态近似分配，透过常态近似分配，统计假设检定、信赖区间、信赖下限都可以用来检验制程是否是有达到特定的标准。

Univariate indices are not adequate for assessing the capability of processes with multiple characteristics. Among all developed multivariate process capabilities, index has the most accurate estimation of Cpm. takes into account both the ratio of the tolerance region to the process region and the probability of nonconforming product. However, the exact probability distribution of is too complicated to be derived. Consequently, the related hypothesis testing and confidence interval cannot be developed.

在众多的指标当中，单变量制程能力指标的发展已趋成熟，而多品质特性的制程能力指标还在持续的发展中，其中多品质特性制程能力指标是所有多品质制程能力指标中估计值最准确的指标，但在利用多品质制程能力指标Cpm来评选两个制程的制程能力时，由於指标之机率分配过於复杂，迄今未能推导出其相关的统计假说检定或信赖区间，因此无法发展出检定两个制程能力指标Cpm是否有差异的统计检定程序。

Methods: Between April and November, 2004, we carried out a cross-sectional study that administerd a self-assessed health questionnaire survey to the parents of 1,117 children from 14 elementary and junior high schools with high tension power lines hovering over the campuses. The control group was consisted of 2,204 children from 18 control schools. Multivariate multinominal logistic regression model was used to calculate the age and socioeconomic indicators adjusted odds ratios and the corresponding confidence intervals of clinical visits and health conditions within a one- month period prior to questionnaire survey in relation to the putatively hazardous exposure to magnetic fields.

本研究利用横断性研究设计，在2004年4月至11月期间，针对台北县市14所校园上空有高压输电线跨越之国民中小学学童1，117名以及18所校园上空无高压输电线跨越之国民中小学学童2，204名的家长进行过去一个月以来，对学童健康情形之自我评量问卷；并利用多变量多名义逻辑斯迥归模式调整年龄与社经指标后，计算胜算比及其相对应之信赖区间，用以估计暴露组学童过去一个月内生病与就医症状的相对危险性。

So, to avoid excessive extrapolations of the Antoine equation for the two more volatile components (dipropyl ether and1-propyl alcohol), we have decided to use in this work other equations to estimate these vapour pressures which are applicable in a larger temperature range.

因此，为了避免安托万方程对这两种挥发性更强的成分(二丙醚和1－丙醇)的过度计算，我们决定在本工作中用其他的适用于更大温度区间的方程来估计它们的蒸汽压。

we carry on logistics demand forecast by taking time-series model and explain its application to logistics demand forecast by justment of data stationary, stead, standardization, modeling, discernment, making steps, parameter estimate and examination to predict, error and calculation of confidential interval.

本文采用时间序列模型进行物流需求预测，用实例从数据平稳性的判断，平稳化，标准化，建模，经模型的识别、定阶、参数估计和检验，到预测及误差和置信区间的计算，详细地说明了时间序列模型在物流需求预测中是如何应用的。

However, the sampling distributions are usually so complicated, this makes establishing the exact confidence interval very difficult. Cheng and Spiring (1989) proposed a Bayesian procedure for assessing process capability index Cp. Chan et al.

然而，大部分制程能力分析的文献都是基於传统频率学派方法所作的推论，但由於估计式之抽样分配往往太过复杂而使得准确的信赖区间并不易求得。

By "recentring" the policy band that pegs the Singapore dollar to an basket of currencies, the Monetary Authority of Singapore gains a pitifully modest devaluation estimated by analysts at about 1-2.5 per cent.

怎么办？通过调整新元兑一篮子货币汇率政策区间的&中心点&，新加坡金管局(Monetary Authority of Singapore)实现了可怜的微幅贬值--分析师估计约为1%至2.5%。

The present paper proposes an analytical method of solution, in which operational calculus and Laplace transform are applied.

将所得结果和以前的结果对照，发现有一些差异；即过去的计算的结果一般使密度偏低，并且在变化较大的区间无法正确地估计及计算出来。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。