
     Sir Ronald Fisher introduced the Analysis of Variance during the 1920's with the resulting statistic - the F ratio.
ANOVA is a powerful tecnique which enables the evaluation of differences  AMONG any number of group comparisions. 

   Late in the 20th century Dr. John Tukey developed the HSD(Honestly Significant Different) test which adds the nice
capability to determine exactly where the differences are.

     This programs uses data in the Microbase spreadsheet to provide the F value and a Tukey Table which enables
the immediate answer to the questions,

    Is there any significant difference among the means? and,
    If there is then where is it?,

   The data must contain the column(0) and row(0) names associated with the data. 
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