Verify that the central composite design shown in Table P11.8 blocks orthogonally: T A B L

Question:

Verify that the central composite design shown in Table P11.8 blocks orthogonally:

◾ T A B L E P11.8 A CCD in Three Blocks Block 1 Block 2 x1 x2 x3 x1 x2 x3 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 −1 1 −1 −1 1 −1 1 −1 −1 1 −1 1 1 −1 1 −1 −1 −1 −1 Block 3 x1 x2 x3 −1.633 0 0 1.633 0 0 0 −1.633 0 0 1.633 0 0 0 −1.633 0 0 1.633 0 0 0 0 0 0

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