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Single Factor Analysis of Variance

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  • #42717

    Sinnicks
    Participant

    In a single factor analysis of variance, the assumption of homogeneity of variances applies to:
    the variances within the treatment groups
    the variance of the treatment means
    the total variance
    all of the above
    and why?

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    #135041

    Mr IAM
    Participant

    Are you not done with your little test yet?  This is getting old.

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    #135047

    Sinnicks
    Participant

    Then don’t pay attention to my questions!

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    #135072

    Craig
    Participant

    It’s does not apply to all variation. This would make no sense. Homogeneous with respect to what?
    It can’t be “all of the above” because we just ruled one out.
    It can’t be the variance of the treatmement means, because that it what we are evaluating (Between variation divided by within variation). That would make no sense either.
    The homogeneity of variance assumption applies to the variance within the groups, and is intended to make sure the natural variation from group to group is essentially the same.

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    #135077

    Teacher
    Member

    Honestly Mark, there comes a time to do some work on your own.
     

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    #135081

    Dartman_undersiege
    Participant

    Arrogant Mark,
    This is not that way you treat people that educate you on your pursue of statistical knowledge. You have a different way of saying “Thank you”. Don’t bite the hand that feeds you. 
    To answer your question, ANOVA – (Analysis Of Variance) are so called since it can be use to analyze the variation for each data set with the group, between groups and to the overall data sets. You do this to determine where your variation lays thus for you to locate easily your focus study.
    Please dont answer this message. I dont expect something good coming from you.
    Dartman_Undersiege
       

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    #135088

    Sinnicks
    Participant

    Thanks so much, I never intended to be arrogant. Actually, I thought the last gentlemen was very arrogant. I appreciate all responses which has greatly helped me understand these various lessons in statistics.
    Thanks to everyone for their assistance. I certainly appreciate it.

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Viewing 7 posts - 1 through 7 (of 7 total)

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