Firstly, we give an effective sampling design: a simple random case sample with replacement is drawn out of all cases; the control sample is drawn out of all controls with two-stage cluster sampling.
首先，我们设计了一个有效的抽样方案：采取简单随机抽样从病例组抽取样本；采取二阶段整群抽样从对照组抽取样本。
Statistical Methods of Two-stage Sampling on the Randomized Response Technique for Sensitive Question Survey with Multiple Choices and its Application
多项选择敏感问题RRT二阶段抽样的统计方法及应用
Analysis of a Case-Control Data with Two-Stage Cluster Sampling of Controls;
二阶段整群抽样病例对照数据的分析
Stratified Two-stage Cluster Sampling on the Simmons Model for Sensitive Question Survey
敏感问题Simmons模型分层二阶段整群抽样的统计方法
The method to estimate the sample sizes for two-stage cluster sampling and its application in survey study of theatment cost;
二阶段整群抽样的样本大小估计公式及其在医疗费用调查中的应用
The draw for the second phase of qualifying has been made in Bangkok.
预选赛第二阶段的分组抽签已在曼谷举行。
Comparision of Statistics Methods for Analysis of Multistage Clustered Randomized Data;
多阶段随机抽样数据统计分析方法比较
Practical Problems of Equal-Probability Principle in Multi-Stage Random Sampling;
等概率原则在多阶段随机抽样中的实践问题
Extension of two useful results in two-stage sampling and its applications;
对二阶抽样中两个定理的扩充及其应用
Cluster sampling on various stages and strata method was adopted.38474 persons were interviewed.
采取多阶段分层、群抽样的方法,对38474人进行家庭入户健康询问调查。
An exploratory survey was conducted to assess economic profitability of cane based furniture enterprises in Chittagong City Corporation area of Bangladesh.
采用分阶段抽样方式对大港市藤家具企业的经济效益进行调查。
The Role and Function of Modified Strata Sampling in the Working Statistical Investigation System;
划类选点抽样调查方法在现阶段统计调查方法中的地位和作用
Stratified two-stage cluster sampling on unrelated question model for quantitative sensitive questions
数量特征敏感问题分层两阶段整群抽样的统计方法
Item 2. The second stage--reorganization area by area.
第二项：第二阶段，为分区改编阶段。
(6)The present stage is the second one in the new period.
（六）目前的阶段，是新时期的第二个阶段。
The second stage was the War of the Agrarian Revolution.
第二阶段，即土地革命战争的阶段。
The second stage is the metaphysical stage.
第二阶段是形而上学阶段。
second stage of impact
汽车碰撞的第二阶段
Phase II projects (SF)
第二阶段项目（特别基金）