The following statements request a box plot with schematic box-and-whisker plots: title2 'BOXSTYLE=SCHEMATIC'; proc boxplot data=times; plot delay * day / boxstyle = schematic nohlabel cframe = vligb ...

The notches, requested with the NOTCHES option, measure the significance of the difference between two medians. The medians of two box plots are significantly different at approximately the 0.05 level ...