Class Meeting 25

Class Meeting 25 - CHEN 3010 Applied Data Analysis Class...

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1 CHEN 3010 Applied Data Analysis Class Meeting #24 Tuesday, Nov. 25 th Today's Topics Reading for Thursday: pages 333-349 Homework #12 posted, due Tuesday, Dec. 7 th OR Wednesday Dec. 8 th by 9 a.m. Experimental Design Background Factorial design Details on 2 2 design
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2 Experimental Design (a.k.a. Statistical Design of Experiments, SDOE, DOE ) Process or Product inputs (a.k.a. factors ) outputs (a.k.a. responses ) Possible scenarios preliminary product/process design 10’s of factors – need to screen to find important ones only crude linear models req’d some inputs can be set/controlled while others cannot – latter called environmental some outputs represent primary product quality measures, others relate to secondary constraints final product/process design handful of factors, all important nonlinear models usually req’d on-line optimization and control on the fly ” adjustments during production
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3 Need for Miminal Experimentation running experimental tests costly and time consuming practical need to extract as much information as posssible with a minimal amount of experimentation naïve approach to experimentation yields far too many experimental runs proper approach to experimental design an absolute necessity in R&D, design and production What is done in experimental design? determine the factors that are going to be varied and the levels to be set for each factor determine the experimental plan: the schedule for experimental runs and what are the factor levels for each run set up the scheme for processing the experimental results
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4 Experimental Designs Are Sequential final design screening fractional factorial types of
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Class Meeting 25 - CHEN 3010 Applied Data Analysis Class...

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