Exact test 1.0.0.1

The asymptotic approximations are not valid for small samples. The ability to perform exact statistical tests frees one from the worries of the quality of asymptotic P-values. \`Exact Test\` always gives you exact P-values, regardless of your data structure.
The (non parametric) tests are:

1. One-Sample Chi-Square Goodness-of-Fit Test.
2. Independence in RxC-Contingency Tables (Fisher\`s Exact Test).
3. Friedman\`s Test (Cochran\`s Test).
4. Kruskal-Wallis Test (Mann-Whitney\`s Test/Wilcoxon\`s Rank Sum Test).
5. McNemar\`s Test.
6. Runs Test.
7. Spearman\`s Correlation Coefficient Test.
8. Wilcoxon\`s Signed Rank Test.