Table 1: Design summary of experimental design.
(a)

Study typeInitial designCenter pointsDesign modelRunsBlocks

FactorialFull Factorial02FI9No Blocks

(b)

FactorNameUnitsTypeLow ActualHigh ActualLevels

Alginate %w/wCategoric1%4%3
Acrycoat E30D%w/wCategoric0%4%3

(c)

ResponseNameUnitsObservn.AnalysisMin.Max.Mean SDRatio

Y1 mg/hr9Factorial8.8911.4710.640.821.29
Y2 mg9Factorial8.0037.3422.5110.74.67
Y3 hr9Factorial4.509.307.121.472.07
Y4 9Factorial0.601.791.010.373.00

The design matrix Evaluation for factorial 2FI model.
Degrees of freedom (dF) for evaluation, model: 8, residuals: 0, lack of fit: 0, pure error: 0, and total: 9.