From:  Development and consumer acceptability of a pearl millet-based savory porridge premix using I-optimal mixture design

 Validation of the model using a two-sided confirmation run with 95% confidence (p < 0.05).

ResponsePredicted meanExperimental mean (± SD)ResidualError (%)95% PI (low–high)
Taste7.9648.17 ± 0.38–0.2062.527.714–8.215
Flavor8.2888.17 ± 0.380.1181.448.160–8.416
Mouthfeel8.2888.07 ± 0.260.2182.708.063–8.512
Appearance7.7557.60 ± 0.490.1552.047.553–7.957
Overall acceptability8.0288.00 ± 0.200.0280.357.798–8.257

PI: prediction interval.