Fractional factorial design


Question: Consider the following two designs for a 28-3 fractional factorial design.

Design I  Design generators                    Design II Design generators

F=BCD   G=ABD   H=ABCE                       F=ABCD   G=ACDE   H=ABDE

a. What is the defining relation for each design.

b. What is the resolution of each design. Explain why.

c. Find the Abberation Vector for each design and explain which one (if any)  is a better (Minimum Abberation) design and why.

d. How many estimable blocks will be in the alias structure.

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Basic Statistics: Fractional factorial design
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