Relative Prediction Variance

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Design of Experiments Guide • Technical Details • Relative Prediction Variance

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Relative Prediction Variance

Consider the following notation:

Model matrix. See Model Matrix in Custom Designs. Custom designs provide a script that shows the model matrix. See Save X Matrix in Custom Designs.

Error variance.

Vector of least squares estimates of the parameters.

The ith row of X.

Using this notation, the predicted response for the ith row of X is given by:

The relative prediction variance at the settings defined by

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Help created on 7/12/2018