The following example uses the flight delay data of the preceding example to illustrate how you can create box plots with various styles of box-and-whisker plots. The following statements create a ...

Use box plots to illustrate the spread and differences of samples.

The box plot, also known as the box-and-whisker plot, represents both the summary statistics and the distribution of the primary data.

Plots varied in spatial orientation (horizontal or vertical), interquartile spread, the ratio of whisker length to interquartile spread, and whisker judged. Overall, estimates of whisker length for ...

The medians of two box plots are significantly different at approximately the 0.05 level if the corresponding notches do not overlap. For example, in Output 18.3.1, the median for December 20 is ...