查询词典 sampling error

The practical application of the Complex Sequential Sampling Decision Technique has been restricted due to the lack of the End-limiting Sequential Sampling Model.

复序贯抽样决策技术实际应用的受限，原因在于截止限序贯抽样模型的缺乏。

Topics include: attribute and variables sampling plans; sequential sampling plans; rectifying control procedures; charting, smoothing, forecasting, and prediction of discrete time series.

包括：计数抽样计划和变动抽样；序贯抽样计划；调整控制过程；制图，平滑，预测和离散时间序列的预报。

Topics include: attribute and variables sampling plans; sequential sampling plans; rectifying control procedures; charting, smoothing

包括：计数抽样计划和变动抽样；序贯抽样计划；调整控制过程；制图，平滑，预测和离散时间序列的预报。

Objective: To provide a minimum sample size approach and a sequential sampling approach for testing whether the sporozoite rate has exceeded the critical level of malaria epidemics using the pool sampling method.

目的：给出基于混合样本的最小检测次数法和序贯检验法，以检验子孢子阳性率是否超过导致疟疾流行的临界水平。

It is shown through the living example analysis that, with the Complex Sequential Sampling Decision Technique, the sampling cost may be cut down by a big margin for the same bio-population under the conditions of given degrees of accuracy and confidence.

实例分析表明：对于同一种生物种群，在一定的精度和置信水平要求下，复序贯抽样决策方法可以大幅度地节约抽样成本。

Stratified random sampling and simple random sampling methods were used to select sample from 14 counties.

通过分层抽样和单纯随机抽样相结合的方法，抽取昆明市14个县的部分参合农民进行问卷调查。

Methods The integration of simple random sampling and stratified sampling was adopted to select 480 soldiers of 5 different branches of the military forces stationed in Jinan as study objects.

采用简单随机抽样和分层抽样相结合的方法抽取驻济5个兵种不同的部队，计480名军人作为研究对象。

In principle, layered random sampling and simple random sampling were used.

取样原则采分层随机抽样和简单随机抽样方式，共抽取12所学校，抽样得70个班级，含68位教师与其班级学生共754人，回收的有效样本共计70班，合计68位级任教师与739位学生。

The simple random sampling plan and stratified random sampling plan has been introduced and the application means and effects of which also has been presented,it has some characteristics such as material precision and obvious reduce of sample size,and rational advice has been presented.

介绍了简单随机抽样和分层随机抽样方法及其在检测中的应用方法和效果。

Consequently, investigated in detail are several concrete complementing schemes based on simple random sampling, stratified sampling.

摘要本文研究了不放回追加策略，包括基本设计和域追加设计都为简单随机抽样、分层随机抽样情形下不放回样本追加时域的估计的问题。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。