Question

Determine t a/2
with a = 0.05, and 42 degrees of freedom.
I can't seem to figure this out with out the t distribution table.

Answer 1

Usually t tables will go by 10's at some point. If you have 42 degrees of freedom, go by 40.

Answer 2

so it would be 1.684?

Answer 3

t tables can be different, do by what's in your stat book