Question: Consider a 25 experiment where the experimental runs are on 4 different machines. Use the machines as blocks, and assume that all main effects and

Consider a 25 experiment where the experimental runs are on 4 different machines. Use the machines as blocks, and assume that all main effects and two-factor interactions may be important.
(a) Which runs would be made on each of the 4 machines?
(b) Which effects are confounded with blocks?

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