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Experimental Design by Emily Murphree, Bruce Bowerman

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CHAPTER 3

More Advanced Experimental Designs

3.1 Nested Factors

Suppose that the plant supervisor of a small electronics firm wishes to compare three methods for assembling an electronic device. The plant has a total of six different workstations. To carry out the study, the supervisor randomly assigns 135452.jpg workstations to each of the 135445.jpg assembly methods. Here, the workstations assigned to any one method are different from those assigned to any other method. At each workstation, randomly selected production workers (chosen from all of the workers who ...

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