| g01ddc | nag_shapiro_wilk_test Shapiro and Wilk's W test for Normality |
| g07bbc | nag_censored_normal Computes maximum likelihood estimates for parameters of the Normal distribution from grouped and/or censored data |
| g07cac | nag_2_sample_t_test Computes t-test statistic for a difference in means between two Normal populations, confidence interval |