# 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 Meta_Grp	All between Meta_Grp	-6.51727860288	8.8984116245e-11	2.49155525486e-09	0.001	0.028
All within Meta_Grp	firm vs. firm	9.79531693199	7.45259833301e-22	2.08672753324e-20	0.001	0.028
All within Meta_Grp	NA vs. NA	2.64026833932	0.00840692339753	0.235393855131	0.011	0.308
All within Meta_Grp	bact vs. bact	-3.85416955823	0.000119980237617	0.00335944665327	0.001	0.028
All within Meta_Grp	firm vs. NA	-1.0768294851	0.281785274049	1	0.278	1.000
All within Meta_Grp	firm vs. bact	-6.00005753746	2.37000972293e-09	6.6360272242e-08	0.001	0.028
All within Meta_Grp	NA vs. bact	-3.77289798111	0.000168917132775	0.00472967971769	0.001	0.028
All between Meta_Grp	firm vs. firm	16.9555891742	2.70278996857e-58	7.56781191199e-57	0.001	0.028
All between Meta_Grp	NA vs. NA	4.81993021617	1.63539087809e-06	4.57909445867e-05	0.001	0.028
All between Meta_Grp	bact vs. bact	1.96623252872	0.0494125478033	1	0.061	1.000
All between Meta_Grp	firm vs. NA	1.69306178948	0.0907041268695	1	0.074	1.000
All between Meta_Grp	firm vs. bact	-0.24191336421	0.808873414748	1	0.807	1.000
All between Meta_Grp	NA vs. bact	-0.536331148784	0.591820696494	1	0.579	1.000
firm vs. firm	NA vs. NA	0.0786240016554	0.937419519323	1	0.929	1.000
firm vs. firm	bact vs. bact	-12.578828619	7.3877531559e-34	2.06857088365e-32	0.001	0.028
firm vs. firm	firm vs. NA	-7.6529631454	3.69718533256e-13	1.03521189312e-11	0.001	0.028
firm vs. firm	firm vs. bact	-16.2004928816	2.09064960474e-52	5.85381889327e-51	0.001	0.028
firm vs. firm	NA vs. bact	-12.676774122	6.05213702263e-31	1.69459836634e-29	0.001	0.028
NA vs. NA	bact vs. bact	-3.47965845833	0.000527022845233	0.0147566396665	0.001	0.028
NA vs. NA	firm vs. NA	-3.73913857683	0.00030370113793	0.00850363186205	0.002	0.056
NA vs. NA	firm vs. bact	-4.79293993069	1.95682127366e-06	5.47909956623e-05	0.001	0.028
NA vs. NA	NA vs. bact	-5.48095640676	1.16420835715e-07	3.25978340001e-06	0.001	0.028
bact vs. bact	firm vs. NA	0.58650192203	0.55767701725	1	0.545	1.000
bact vs. bact	firm vs. bact	-1.97208433553	0.0487660569666	1	0.060	1.000
bact vs. bact	NA vs. bact	-1.50031374652	0.133828425533	1	0.124	1.000
firm vs. NA	firm vs. bact	-1.74707277435	0.0809692470929	1	0.074	1.000
firm vs. NA	NA vs. bact	-1.86495930568	0.0631536509675	1	0.073	1.000
firm vs. bact	NA vs. bact	-0.370687073302	0.710948657806	1	0.691	1.000
