Student's t-Distribution             Upper Tail Probabilities        Lower Tail Probabilities (cdf)

Chi-Square Distribution            Upper Tail Probabilities        Lower Tail Probabilities (cdf)   

F-Distribution                            Upper Tail Probabilities         Lower Tail Probabilities (cdf)

Studentized Range Distribution (Lower Tail = .95, Upper Tail = .05)       EXCEL Version

Bonferroni Critical Values for Multiple Tests/CI's in ANOVA Models (Lower Tail = .95, Upper Tail = .05)

General  Bonferroni Critical Values for Multiple Tests/CI's (Lower Tail = .95, Upper Tail = .05)


Durbin-Watson Autocorrelation Test Lower and Upper Critical Values (Lower Tail = .95, Upper Tail = .05)


Wilcoxon Rank-Sum/Mann-Whitney Test Critical Values (Upper Tail Probabilities)


Wilcoxon Signed-Rank Test Critical Values (Upper Tail Probabilities)


Hartley's H-Max Test for Equal Variances in Balanced ANOVAs (Upper Tail Probabilities)


Dunnett's Test for 1-sided Multiple Comparisons with a Control or Best Treatment  (Upper Tail Probabilities)


Dunnett's Test for 2-sided Multiple Comparisons with a Control or Best Treatment  (Upper Tail Probabilities)