Gnuplot Produced by GNUPLOT 5.4 patchlevel 5 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 5 Density t score t distribution t distribution t statistic t statistic join/Path.join/10: Welch t test