# 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 BREASTMILK All between BREASTMILK -5.45534282308 5.65807785653e-08 1.18819634987e-06 0.001 0.021
All within BREASTMILK y vs. y -0.351756171511 0.725059019823 1 0.715 1.000
All within BREASTMILK n vs. n 1.79756628571 0.0725260503571 1 0.066 1.000
All within BREASTMILK y vs. None 0.2637384867 0.792032990631 1 0.809 1.000
All within BREASTMILK y vs. n -5.84176867996 6.29205017469e-09 1.32133053668e-07 0.001 0.021
All within BREASTMILK None vs. n 0.0922148708717 0.926545395196 1 0.935 1.000
All between BREASTMILK y vs. y 5.07832002467 4.27558834899e-07 8.97873553287e-06 0.001 0.021
All between BREASTMILK n vs. n 4.64404208329 4.13835259058e-06 8.69054044022e-05 0.001 0.021
All between BREASTMILK y vs. None 2.50801301445 0.012393104931 0.260255203552 0.013 0.273
All between BREASTMILK y vs. n -0.657326579046 0.511107222687 1 0.487 1.000
All between BREASTMILK None vs. n 1.26218339148 0.207378142688 1 0.188 1.000
y vs. y n vs. n 1.91866114894 0.0553088565191 1 0.058 1.000
y vs. y y vs. None 0.368710493524 0.712422518642 1 0.731 1.000
y vs. y y vs. n -5.47697664656 5.08097089969e-08 1.06700388894e-06 0.001 0.021
y vs. y None vs. n 0.14723912467 0.882974325309 1 0.881 1.000
n vs. n y vs. None -1.2145935162 0.227170129184 1 0.218 1.000
n vs. n y vs. n -4.77323700776 2.28699074655e-06 4.80268056776e-05 0.001 0.021
n vs. n None vs. n -0.706878523894 0.481803723222 1 0.488 1.000
y vs. None y vs. n -2.68112857886 0.00754991397941 0.158548193568 0.009 0.189
y vs. None None vs. n -0.111253146634 0.911828100021 1 0.910 1.000
y vs. n None vs. n 1.35551386468 0.175822656423 1 0.162 1.000