Dismiss Notice
You must be a registered member in order to post messages and view/download attached files in this forum.
Click here to register.

Significant curvature with insignificant LoF

Discussion in 'DOE - Design of Experiments' started by Datterich, Nov 2, 2019.

  1. Datterich

    Datterich New Member

    Joined:
    Nov 2, 2019
    Messages:
    1
    Likes Received:
    0
    Trophy Points:
    1
    Hello everybody,

    I was running an unreplicated two-level factorial design with three center points for screening of my factors.
    The ANOVA-output of my data gave me a significant regression (which is good), but also a significant curvature together with an insignificant lack of fit.

    My interpretation of this is that i do have a significant curvature, but my regression model is nonetheless able to model my datapoints (the residual plots also look as if the regression does adequatly model the data).

    Is this assumption correct or do I miss omething vital?

    Regards,
    Datterich
     
  2. Miner

    Miner Moderator Staff Member

    Joined:
    Jul 30, 2015
    Messages:
    346
    Likes Received:
    262
    Trophy Points:
    62
    Location:
    Greater Milwaukee USA
    Can you attach your data set?
     

Share This Page