stats exam math
what is ƐX^2
x valuse sqared and added together
what is ƐX
values added together
what is (ƐX)^2
all values added the sqared
sqared((ƐX^2-(((ƐX)^2)/N))/N-1)
what is formula for Ŝ
what do you have to do after geting Ŝ
Ŝ/sqrt(N)= S subcript x̌
who find t value 95
DF degrees of freedom