For both centroids and rigids, Wilcoxon Signed-Rank and Binomial tests resulted in p-value less than 0.01, indicating a statistically significant difference between the medians of the two distributions. This conclusion is supported by the 95% confidence intervals (bootstrapping using the median), providing additional evidence that the distributions are different. The 95% confidence interval (bootstrapping using the mean) is different between centroids and rigids. For centroids, the confidence interval suggests no significant difference between the means of two distributions, whereas the opposite is true for rigids.