"Table Analyzed" "centroid speed" "Column D" "pa - optimized" vs. vs. "Column C" "pa - standard" "Unpaired t test" " P value" 0.3176 " P value summary" ns " Significantly different (P < 0.05)?" No " One- or two-tailed P value?" Two-tailed " t, df" "t=1.039, df=13" "How big is the difference?" " Mean of column C" 12.80 " Mean of column D" 14.04 " Difference between means (D - C) ± SEM" "1.240 ± 1.193" " 95% confidence interval" "-1.338 to 3.817" " R squared (eta squared)" 0.07671 "F test to compare variances" " F, DFn, Dfd" "1.853, 6, 7" " P value" 0.4382 " P value summary" ns " Significantly different (P < 0.05)?" No "Data analyzed" " Sample size, column C" 8 " Sample size, column D" 7