How to know if t test or z test

- How to know if you use t test or z test
- How to know if i should use t test or z test
- How to know t test or z test
- How to know to use t test or z test
- How to know when to do t test or z test
- How to know whether to do t test or z test
- How to know t test vs z test
- How to know if the problem being asked in hypothesis testing is z test or t test
- Z test t test