统计学问题：选择什么统计方法?

题目

统计学问题：选择什么统计方法?
最近在学习和做题的时候碰到下面几个问题,
1、Compare response means among two or more groups adjusted for a quantitative conconmitant variable应该用什么统计方法?
2、Compare two independent binomial proportions from independent population是用卡方检验吗?
3、Compare two binomial proportions from independent population based on stratified samples用什么统计方法?用CMH检验吗?
4、Compare distributions of time until the occurrence of an event of interest among independent groups 用什么统计方法?
5、Analyze the data of time until the accurrence of an event of interest among independent groups while accommodating adjustment for one or more covariates.用什么统计方法?

答案

1.协方差
2.卡方
3.CMH
4. 寿命表
5.KM