25. Researchers compared two methods of collecting blood for coagulation studies. The following are the arterial activated partial thromboplastin time (APTT) values recorded for 30 patients in each of the two groups. Construct a box-and-whisker plot from each set of measurements. Compare the two plots. Do they indicate a difference in the distributions of APTT times for the two methods?

Method 1:

20.7 29.6 34.4 56.6 22.5 29.7 31.2 38.3 28.5 22.8 44.8 41.6 24.9 29.0 30.1 33.9 39.7 45.3 22.9 20.3 28.4 35.5 22.8 54.7 52.4 20.9 46.1 35.0 46.1 22.1 Method 2:

23.9 23.2 56.2 30.2 27.2 21.8 53.7 31.6 24.6 49.8 22.6 48.9 23.1 34.6 41.3 34.1 26.7 20.1 38.9 24.2 21.1 40.7 39.8 21.4 41.3 23.7 35.7 29.2 27.4 23.2