how to approximate satterthwaite how to approximate the satterthwaite approximation how to use scatterthwaite approximation can expectation be dropped how to do satterthwaite approximation how to approximate by satterthwaite method what is the method of moments used to solve for how to get estimation for satterthwaite approximation? why is it a problem to deduce the sum of a sample using the method of moments? how to approximate satterthwaite method of moments can you drop expectation on satterthwaite formula how to calculate variance in satterthwaite why does expectation drop in satterthwaite approximation what method is employed for the derivation of satterthwaite how to defination the scatterthwaite approximation equation which method is used to approximate the sum of $n$ satterthwaite approximation methods why can't we drop expectation in instantiation? why is there an expectation sign when combining the satterthwaite method of moments? what method do you use to approximate the sum