# The tests of significance were performed using a two-sided Student's two-sample t-test.
# Alternative hypothesis: Group 1 mean != Group 2 mean
# The nonparametric p-values were calculated using 999 Monte Carlo permutations.
# The nonparametric p-values contain the correct number of significant digits.
# Entries marked with "N/A" could not be calculated because at least one of the groups
# of distances was empty, both groups each contained only a single distance, or
# the test could not be performed (e.g. no variance in groups with the same mean).
Group 1 Group 2 t statistic Parametric p-value Parametric p-value (Bonferroni-corrected) Nonparametric p-value Nonparametric p-value (Bonferroni-corrected)
All within COWMILK All between COWMILK -5.9043489995 4.31806912834e-09 4.31806912834e-08 0.001 0.010
All within COWMILK y vs. y 1.81735151101 0.0694304280755 0.694304280755 0.064 0.640
All within COWMILK n vs. n -0.347522194479 0.728234827847 1 0.733 1.000
All within COWMILK y vs. n -5.9043489995 4.31806912834e-09 4.31806912834e-08 0.001 0.010
All between COWMILK y vs. y 4.75022305895 2.54125390633e-06 2.54125390633e-05 0.001 0.010
All between COWMILK n vs. n 5.55323810623 3.30202007551e-08 3.30202007551e-07 0.001 0.010
All between COWMILK y vs. n 0.0 1.0 1 1.000 1.000
y vs. y n vs. n -1.93653077293 0.0530697654114 0.530697654114 0.062 0.620
y vs. y y vs. n -4.75022305895 2.54125390633e-06 2.54125390633e-05 0.001 0.010
n vs. n y vs. n -5.55323810623 3.30202007551e-08 3.30202007551e-07 0.001 0.010