StatsInvQCDF
StatsInvQCDF (cdf, r, c, df)
The StatsInvQCDF function returns the critical value of the Q cumulative distribution function for r the number of groups, c the number of treatments, and df the error degrees of freedom (df = r * c * (n -1) with sample size n).
Details
The Q distribution is the maximum of several Studentized range statistics. For a simple Tukey test, use r =1.
Examples
The critical value for a Tukey test comparing 5 treatments with 6 samples and 0.05 significance is:
Print StatsInvQCDF(1-0.05,1,5,5*(6-1))