这是我朋友贴给我的。想问一下以下三种情况分别用什么检验？T检验？谢谢了！


The given Situation is: I have interviewed 20 Students about Gender, Age, type of School, Use of radio and use of television.


Which Statistic Test do i need :

1, If i want to know how many boys and girls go to which type of school?

2, If I want to prove that girls are listening more to the radio than boys?

3, If I want to prove that kids from different schools watch a different time of TV