Teacher: "When would you use an f-test rather than a z-test?" When I'm pissed off. I'll have to check if I've passed the 5/9 sessions for this course at the end of these 2 hours. If I have, I won't be coming to any more of these lessons.

Teacher: "When would you use an f-test rather than a z-test?"

When I'm pissed off.

I'll have to check if I've passed the 5/9 sessions for this course at the end of these 2 hours. If I have, I won't be coming to any more of these lessons.