- #1
semidevil
- 157
- 2
i'm getting my concepts very confused now...
so the formula for the normal distri is (y - u)/(sigma)/((sqroot(n)).
so if I want to test y, I set that formula = to alpha(where alpha is the confidence level).
that is if it is one sided. if it is 2 sided, do I still set it to alpha, or alpha/2?
so the formula for the normal distri is (y - u)/(sigma)/((sqroot(n)).
so if I want to test y, I set that formula = to alpha(where alpha is the confidence level).
that is if it is one sided. if it is 2 sided, do I still set it to alpha, or alpha/2?