Dataset: ropestrength.dat Source: S. Cutler and J. Lebaron (1992). "Performance of Nylon Climbing Ropes", http://class.et.byu.edu/mfg340/qualityreports/nylon.htm Description: Results of a 2^4 factorial experiment measuring the amount of pressure in pounds needed to have climbing ropes fail. Four factors: Abrasion, Dirt, Fatigue, Soaked (all Present/Absent). Two replicates ber combination of factor levels. Variabls/Columns Run # 7-8 Abrasion 16 /* 1=Yes, 0=No */ Dirt 24 Fatigue 32 Soaked 40 Pressure to failure (pounds) 46-48