estimation of population standard derivation

This paper achieves noise reduction by using wavelet packet transform,semisoft shrinkage function,Donoho standard deviation estimate and threshold obtain based on statistics.

应用小波包滤波技术,采用半软阈值函数,Donoho标准差估计,基于统计学数据的阈值确定方法,实现了语音信号的白噪声降噪处理,并通过仿真验证了算法的可行性。

nder normal population, the sample standard deviation S underestimate σ, the standard deviation in populations.

证明了正态总体的子样标准差Ｓ总是过低估计总体标准差σ，指出在小样本情况厂需对Ｓ进行修正，并计算了修正系数。

The calculation results show that the statistic and monitoring value are fairly identical, multiple correlation coefficients bigger and estimated standard error smaller.

计算结果表明:变形统计值与变形监测值吻合较好,统计复相关系数较大,估计标准误差较小。

Applications for Bootstrap Method to the Estimation of the Standard Error and Confidence Intervals;

Bootstrap方法在置信区间和标准差估计中的应用(英文)

A Comparativen Study on Confidence Interval of C_p in Terms of Standard Deviation Estimated by Different Methods

不同标准差估计方法下的过程能力指数的置信区间的比较研究

nonlinear standard error of estimate

非线性估计标准误差;非线性估计的标准误差

The accura-cy of the estimatations is expressed in term of the resulting standard errors or as abound on the systematic error.

估计精度用结果标准误差或系统误差带表示。

Interval estimate of standard deviations proportion on two uniform distribution population

关于两个均匀分布总体标准差比的估计

Estimating the Standard Deviation of Noise via Controlled Function

基于控制函数估计图像噪音的标准方差

We shall use the standard error of estimate as a tool in the same way that we can use the standard deviation.

同标准差一样，应该把估计值平均误差当作一个工具。

standard error of estimate based on sample

样本估计值的标准误

standard instrumental variable estimators

标准工具变量估计量

A new method for unbiased estimating standard deviation of strength of concrete of inspected lot is proposed in this paper.

给出了一种混凝土验收批强度标准差的无偏估计方法。

Robust Estimation with High Breakdown Contamination Rate for the Coordinate Transformation of GPS Datum Network in Guqiao Coalmine

顾桥煤矿GPS基准网坐标转换的高崩溃污染率抗差估计

We can use this method to calculate the mean values and standard deviations of the responses, and estimate the stochastic errors of structural characters resulting from the fabrication errors.

利用此法，能计算结构静响应的均值和标准差，估价制造误差引起的结构力学性能的随机性误差。

Research on the Differences Between PRC GAAP and IAS/IFRS;

中国会计标准与国际会计标准的差异研究

ESTIMATION OF MAXIMUM AIM ERROR FOR ANTISHIP MISSILE FIRE CONTROL SYSTEMS

反舰导弹火控系统最大瞄准误差估计

An estimated standard golf score.

标准打数高尔夫球每洞的估计标准杆数

Estimates the standard deviation based on a sample, using the numbers in a column in a list or database that match conditions you specify.\0

使用来自满足所指定条件的列表中的列或数据库中的数字，基于采样估计标准差。\0

Estimates the standard deviation based on a sample, using the numbers in a column in a list or database that match conditions you specify.

使用来自满足所指定条件的列表中的列或数据库中的数字，基于采样估计标准差。

It seems to some people that these requirements have been met in southern Hebei, but this optimistic evaluation of the situation is groundless.

有人说，似乎这样的标准要求在冀南不成问题了。这是空洞乐观的估计，实际上还差得很远。