各位大虾，最近在学习和做题的时候碰到下面几个问题，请各位帮忙一起看看：
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？

谢谢！