Two Sample T tests are used to resolve hypothesis tests around comparing process means. The underlying chart makes use of the T distribution.
1 sample Wilcoxon Non Parametric Hypothesis Test is a rank-based test and it compares the standard value with a hypothesized median.
The 1 sample sign non parametric hypothesis test simply computes a significance test of a hypothesized median value for a single data set.
The Friedman non parametric hypothesis test is an alternative to the one-way ANOVA with repeated measures.
The Kruskal–Wallis Non-Parametric Hypothesis Test is used when a variable does not meet the normality assumptions of one-way ANOVA