# 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	-14.2747116046	3.13722130257e-44	8.7842196472e-43	0.001	0.028
All within Meta_Grp	firm vs. firm	7.87373374006	7.60064422097e-15	2.12818038187e-13	0.001	0.028
All within Meta_Grp	NA vs. NA	3.66650859566	0.000258201946224	0.00722965449428	0.001	0.028
All within Meta_Grp	bact vs. bact	-3.26158910678	0.00112750505811	0.0315701416271	0.001	0.028
All within Meta_Grp	firm vs. NA	-3.96759941334	7.71532823639e-05	0.00216029190619	0.002	0.056
All within Meta_Grp	firm vs. bact	-14.1260130854	4.32751120163e-43	1.21170313646e-41	0.001	0.028
All within Meta_Grp	NA vs. bact	-4.47379249085	8.38354229849e-06	0.000234739184358	0.001	0.028
All between Meta_Grp	firm vs. firm	20.6599501324	5.32628495931e-82	1.49135978861e-80	0.001	0.028
All between Meta_Grp	NA vs. NA	8.83131175477	3.9573769201e-18	1.10806553763e-16	0.001	0.028
All between Meta_Grp	bact vs. bact	10.4977711454	4.04016817604e-25	1.13124708929e-23	0.001	0.028
All between Meta_Grp	firm vs. NA	1.40767582809	0.15948693023	1	0.172	1.000
All between Meta_Grp	firm vs. bact	-2.16002672144	0.030895377659	0.865070574452	0.031	0.868
All between Meta_Grp	NA vs. bact	4.19754325492	2.88010599078e-05	0.000806429677418	0.001	0.028
firm vs. firm	NA vs. NA	1.41185002667	0.15973011893	1	0.160	1.000
firm vs. firm	bact vs. bact	-10.111903388	5.54840795371e-23	1.55355422704e-21	0.001	0.028
firm vs. firm	firm vs. NA	-8.71680550023	3.23606080505e-16	9.06097025415e-15	0.001	0.028
firm vs. firm	firm vs. bact	-20.4316282437	2.06223664579e-77	5.77426260822e-76	0.001	0.028
firm vs. firm	NA vs. bact	-11.1838038334	2.75739871544e-25	7.72071640324e-24	0.001	0.028
NA vs. NA	bact vs. bact	-4.49791759669	7.79349659026e-06	0.000218217904527	0.001	0.028
NA vs. NA	firm vs. NA	-7.70013449905	8.64984862378e-12	2.42195761466e-10	0.001	0.028
NA vs. NA	firm vs. bact	-9.16165580279	4.14738487606e-19	1.1612677653e-17	0.001	0.028
NA vs. NA	NA vs. bact	-8.21745810318	1.84255835324e-14	5.15916338908e-13	0.001	0.028
bact vs. bact	firm vs. NA	-2.79889750217	0.00523112432008	0.146471480962	0.002	0.056
bact vs. bact	firm vs. bact	-10.9622240845	4.80632362615e-27	1.34577061532e-25	0.001	0.028
bact vs. bact	NA vs. bact	-2.63086313887	0.00863933865852	0.241901482439	0.009	0.252
firm vs. NA	firm vs. bact	-2.31400225119	0.0208942975885	0.585040332477	0.018	0.504
firm vs. NA	NA vs. bact	1.35974180363	0.174922586775	1	0.183	1.000
firm vs. bact	NA vs. bact	5.41621781469	7.61538387925e-08	2.13230748619e-06	0.001	0.028
