Observations on burst strength (lb/in2) were obtained both for test nozzle closure welds...

Observations on burst strength (lb/in²) were obtained both for test nozzle closure welds and for production canister nozzle welds (“Proper Procedures Are the Key to Welding Radioactive Waste Cannisters,” Welding J., Aug. 1997: 61–67).

Construct a comparative boxplot and comment on interesting features (the cited article did not include such a picture, but the authors commented that they had looked at one).