Wilcoxon's signed-ranks test: use the Wilcoxon's signed-ranks test to determine if the samples come from a single population or from two different populations. XLSTAT can perform a two-tailed test or a one-tailed test.
sign test: use the sign test to determine if the samples come from a single population or from two different populations. XLSTAT can perform a two-tailed or a one-tailed test.