Hi Folks,
I have several questions about DoE, could you please answer them? Thank you so much.
1) Due to experiment constraint, can I manually adjust center point value for example (-1)= 10, (+1)= 12, (0) = 11. But (0) = 11 is not a good center point, can I change to 10.5 in the design? How this change will impact the data analysis and final model as well as model prediction? what if I used (0)= 11.5 in the next experiment while keep (-1)= 10, (+1)= 12?
2) How the values in the model evaluation such as power analysis, confound, predicted variance impact the final model once I collect all the experimental data? Let's the power for one interaction is only = 0.2 vs another design power = 0.8, what's the potential outcome will be?
Thank you so much again.
