testStat obsStats pValClassical pValBootstrap abs diff means 0.26 NA 0.0172 abs diff medians 0.322 NA 0.014 abs welch t 2.344 NA 0.017 welch t -2.344 0.0194 0.017 kolmogorov-smirnov 0.134 0.0073 0.0051 wilcoxon 41710 0.0012 0.0011