Testing

  • Lyric © Mark Glickman
    may sing to tune of "Nowhere Man" (John Lennon, Paul McCartney)

    He's a real ANOVA man
    Designing all his sampling plans
    Calculating mean-squared errors and p-values.

    Wants to test for equal mu's
    Knows which tables he must use
    All his samples he will choose at random.

    ANOVA man, please listen;
    Where's the data that you're missing?
    ANOVA man, what kinds of bias can you withstand?

    Writes down two hypotheses;
    Hopes to reject the first of these;
    Needs to list out all degrees of freedom.

    ANOVA man, try harder;
    Don't give up, you're smarter;
    ANOVA man, how come your students don't understand?

    At 0.05 he rejects
    Ignores the size of his effects
    Now he's stuck -- he's got selection bias!

    ANOVA man, please listen;
    Where's the data that you're missing?
    ANOVA man, what kinds of bias can you withstand?

    He's a real ANOVA man
    Designing all his sampling plans
    Calculating mean-squared errors and p-values.

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