Using the FrF2 function, create a minimum aberration split-plot fractional factorial design with four whole-plot factors A, B, C, and D, and four sub-

plot factors P, Q, R, and S utilizing a one-half fraction in the whole plots and a one-quarter fraction in the sub-plots.

(a) What are the generators for this (24−1 × 24−2)?

(b) Show the alias pattern for this experiment up to three-factor interactions.

(c) List the seven eects and all their aliases that would be tested with the whole-plot error.

(d) List the remaining 24 eects that would be tested with the sub-plot error.