本文讨论了存在不回答样本单位时，有限总体均值的缺损样本估计。
This paper deals with the incomplete sample estimation of finite population mean in existing of nonrespondent sampling units.
对于样本均值估计总体均值，给出了基于误差限制的样本容量的计算式。
The calculation formulas of sample size based on the error limitation are given for estimation of population mean.
本文在分层随机抽样下通过使用辅助变量的偏斜系数提出了几个总体均值的估计。
The paper proposes new separate ratio estimators for population mean using known skewness coefficient of auxiliary variable in stratified random sampling.
如果你…像数叶子的睿都巴若那一样，只有部分样本的话，你可以来估计总体均值。
When you get — this is Rituparna, counting the leaves on a tree — you can estimate, from a sample, the population expected values.
我们有几种不同的方式去定义这个概念，取决于我们指的是，样本均值还是总体均值。
We can define it in a couple of different ways depending on whether we're talking about sample mean or population mean.
给出了正态总体均值和标准差的最大似然估计（M LE），似然比检验统计量及其渐近分布等结果。
The maximum likelihood estimators(MLE) of means and standard deviations, and the asymptotic distribution of likelihood ratio statistic were given.
讨论了等距抽样中，如何利用辅助信息改进总体平均值的估计，以达到提高估计精度之目的。
This paper deals with the estimation of population mean in systematic sampling by use of auxiliary information in order to improve the accuracy of the estimate.
介绍三种对多指标的质量控制方法，第一种方法是用一个标量控制多变量总体的均值向量和协方差矩阵；
Three approaches to Multivariate quality control are introduced. The first approach is to control the mean vector and covariance matrix of multivariate population in terms of one statistic.
此工具用于检验两个总体平均值之间不存在差异的空值假设，而不是单方或双方的其他假设。
This tool is used to test the null hypothesis that there is no difference between two population means against either one-sided or two-sided alternative hypotheses.
介绍中位值法和平均值法数字滤波的原理、特点和实例，给出控制输出的归一化模型，以及软件的总体结构。
The principle and characteristic and example of middle value and average value filter is provided, the uniform model of output control and the flow of software is put forward.
校正估计法已被大量运用于抽样调查中，它利用辅助信息构造的校正权重提高了对总体总值(或均值)的估计精度。
Calibration estimation which USES known auxiliary information at the estimation stage to improve the precision of the estimators of totals and means has been widely used in survey sampling.
无论在总体平均值上，还是在不同亚种个体同一部位上，赤狐东北亚种上毛的髓质指数均大于华南亚种。
The medulla exponent of upper hair of northeast subspecies was bigger than that of the south either in total average or in the same position of different subspecies.
OD调查的目的是利用调查所得的OD数据对样本总体的均值作出统计推断。
The purpose of OD investigations is to make statistical estimation of the average value of the samples based on the OD data obtained.
检验工具还可用于当两个总体平均值之间的差异具有特定非零值的空值假设的情况。
The z-Test tool can also be used for the case where the null hypothesis is that there is a specific nonzero value for the difference between the two population means.
由目标的实测数据，计算特征向量总体的均值和协方差矩阵及其逆矩阵，由距离判别法进行目标识别。
The mean and covariance matrixes and their inverse matrixes of all eigen vectors are obtained through measured data of the target. And the target is recognized by techniques of range discrimination.
细集料球度的均值在极小值到极大值之间变化，处于0.67 - 0.97之间，总体上各球度值在0.806上下波动。
The average sphericity of fine aggregates is 0.67-0.97 and the overall value fluctuates above and below 0.806.
血压均值变化，干预组收缩压、舒张压逐年降低，规律性降压药物治疗由31.4%提高到53.1%，高血压控制率达90.5%，干预人群总体血压水准低于对照人群。
The systolic and diastolic pressure of intervention group were lowered and was used to guide treatment of drug from 31. 4%to 53.1% and the control rate of hypertension was reach 90. 5%.
Cpm是一个总体的能力指数，定义了均值偏离目标值的均方差的平方根和规范宽度的之间的比值。
Cpm is an overall capability index defined as the ratio of the specification spread (USL - LSL) to the square root of the mean squared deviation from the target.
首先对一类总体讨论了截尾均值的渐近最优性，然后给出了更一般情形总体参数最优截尾估计的一个表达式。
For a kind of population, the asymptotic best property of trimmed mean is discussed. Then, a expression of the best trimmed estimate of population parameters is given.
基于尺度赋权方差法给出总体分布有偏并假定总体分布未知情况下休哈特均值控制图的控制限。
Reference 14 gives the control lines of shewhart mean control chart for skewed population which is unknown based on scaled weighted variance method.
抽样分布样本效果大小的平均值可以作为总体效果大小的估计值 ，它与样本容量和抽样样本数目有密切关系 ；
The simulated experimental results showed that significance t testing is highly related to population distribution effect size and sample capacities, yet rarely related to the numbers of rand…
抽样分布样本效果大小的平均值可以作为总体效果大小的估计值 ，它与样本容量和抽样样本数目有密切关系 ；
The simulated experimental results showed that significance t testing is highly related to population distribution effect size and sample capacities, yet rarely related to the numbers of rand…
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