Problem:

$2^3$ Confounded Design

Design the experiment below to have two blocks with ABC confounded. Show your complete solution then analyze th data.

$\backslash$table$[[$Observation$,$A$,$B$,$C$,$Model Term,A$,$B$,$C$,$Yield$],[1,-,-,-,(1),0,0,0,31],[2,+,-,-,$a$,1,0,0,33],[3,-,+,-,$b$,0,1,0,48],[4,+,+,-,$abc,$1,1,0,53],[5,-,-,+,$c$,0,0,1,47],[6,+,-,+,$ac$,1,0,1,48],[7,-,+,+,$bc$,0,1,1,61],[8,+,+,+,$abc,$1,1,1,51]]$