Experimental Design - Math Site

In order to not have this problem with rank, Scheffé foundthat you could eliminate the constant.Consider a linear function of the two components of amixture, x 1 and x 2y = β 0 + β 1 x 1 + β 2 x 2Since 1 = x 1 + x 2 , we can writey = β 0 (x 1 + x 2 ) + β 1 x 1 + β 2 x 2= (β 0 + β 1 )x 1 +(β 0 + β 2 )x 2?CEI Inc.