Randomized block design: Difference between revisions

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==Example of a Randomized Block Design==
Suppose engineers at a semiconductor manufacturing facility want to test whether different waferwater implant material dosages have a significant effect on resistivity measurements after a diffusion process taking place in a furnace. They have four different dosages they want to try and enough experimental wafers from the same lot to run three wafers at each of the dosages.
 
The nuisance factor they are concerned with is "furnace run" since it is known that each furnace run differs from the last and impacts many process parameters.