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Exercises:

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Below are some common questions and answers

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A number linear models drawn as 3D-graphs (Minitab macro %LinModel)

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Design of Experiments (DoE) — some basic features

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*Y*

*X*_{1}

-1

+1

Table of measured results (*Y*)

*X*_{1} high (+1)

*X*_{1} low (-1)

*X*_{2} low (-1)

*X*_{2} high (+1)

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Change of parameters in the model

*β*_{0}

*β*_{1}

*β*_{2}

*β*_{3}

*σ* (error)