Interquartile range (IQR) method for outlier detection - Table 1.8 Diameter of the Q1 Q3 IQR Lower Bound hole (mm) 1.5 x IQR-Q1) 6 -53.25 -60.375 -47.425 -38.5 -35.525 7 8 9 10 Diameter of the hole (mm) 67899 10 70.8 62.1 51.85 40.9 37.1 Trial 1 71.4 63 54.2 42.2 36.5 Upper Bond (1.5x IQR+Q3) 100.05 64.975 2.95 59.225 82.5 11.7 63.25 1.15 54.8 42.5 1.6 44.9 38.15 1.05 39.725 Time taken to drain (s) ((3s.f) Trial 2 Trial 3 70.2 61.8 49.5 42.3 38.1 83.4 63.5 54.9 39.6 37.7 Trial 4 81.6 62.4 54.7 42.7 38.2 Average Time (s) (3s.f) 76.7 62.7 53.3 41.7 37.6

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