in the formula, there is a formula for S(f)^2=SEE^2*[1+1/n+(X-X(mean))^2/[(n-1)*S(x)^2] what is the formula for S(x)^2? what is (X-X(mean))^2? Thanks.
Are you asking what the variance is?
S(x)^2 is the variance of x. S(x) means Std deviation of X. I’m just praying they give us S(f) that formula is just cruel.
Sx^2= (sum(x-xbar)^2)/(n-1) Its the varience of the independent variable.
Posted by: jut111 (IP Logged) [hide posts from this user] Date: February 15, 2009 06:52PM S(x)^2 is the variance of x. S(x) means Std deviation of X. I’m just praying they give us S(f) that formula is just cruel. -------------------- Use your calculator. You can get it in 2 seconds.