Table 5.

Variance of true gene expression (Var Z) and measurement error (Var e) for each of the different amplified protocols and the unamplified arrays.

	Affymetrix	Affymetrix w/o ligase	Jeffrey lab with G-50 cleanup	Jeffrey lab	Poly(A)+ RNA
Var Z	0.661	0.658	0.623	0.661	0.726
Var e	0.102	0.066	0.078	0.055	0.059