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full factorial example?

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  • This topic has 7 replies, 5 voices, and was last updated 13 years ago by GB.
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  • #46096

    Allthingsidiot
    Participant

    How  to  improve  the  yield  for  the  following DOE:
    Exp.  T   P    C    Yield
    2       +    –    –       77
    3       –    +    –       47
    5      –     –     +       56
    8      +    +     +      73
    What do  you  suggest  to to  modify  this  experiment,regarding   Temp., Pressure and  Cncentration.
    Please  give  me some useful  hints and  avoid to  blame  me for  not  knowing  what  to  do?thanks  and  regards    

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    #151899

    Heebeegeebee BB
    Participant

    Is this homework?

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    #151900

    Allthingsidiot
    Participant

    Thank You for  the  reply.No,it  is  only  an  exercise just  to grasp  the  concept.

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    #151909

    Robert Butler
    Participant

      Put your temp at the high level and put P and C at whatever is the most economical.
    The way to look at this is to remember that with designs you are looking at the differences in the average responses of the high and the low settings.  For T the two + settings are 77 and 73 whereas the two – settings are 47 and 56.  For P and C the two plus settings are, respectively 47, 73 and 56, 73 and the two minus settings are, respectively, 56,77 and 77,47.  If you take the averages then the only variable that results in any kind of a large average for Yield is T.
      By the way, unless you have experiments 1,4,6,and 7 which you didn’t tell us about then this isn’t a full factorial design.

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    #151910

    How clever, how smart
    Participant

    jee, heebeegeebee BB, your name truly reflects the speed of your thinking … edeeeeee

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    #151916

    Allthingsidiot
    Participant

    Instead  of  giving  some  hints,all  you  care  about is  the  name  and  its  reflection?How  silly?thanks and  regards

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    #151915

    Allthingsidiot
    Participant

    Robert
    I greatly  appreciate your hints to solve  this  problem.You  are  giving  a  good  example  for  those who  are  experts in “Blaming”.Afterall this  Forum is  made to  assist  eachother.Thank You  again. 

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    #151932

    GB
    Participant

    But sometimes you can’t help but point and laugh…

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