Data set 1. A Engineer studied the effects of two different reflux rates on the yields from a distillation column. The results obtained were as follows: Reflux 70 80 0.5 0.65 0.6 0.69 0.81 0.63 0.62...

no refencing styleqquestions 2 to 4 on data set 1 and questions 5-9 on datat set 2



Data set 1. A Engineer studied the effects of two different reflux rates on the yields from a distillation column. The results obtained were as follows: Reflux 70 80 0.5 0.65 0.6 0.69 0.81 0.63 0.62 0.63 0.58 0.66 0.51 0.85 0.68 0.71 0.55 0.65 0.74 0.92 0.68 0.58 0.61 0.69 0.56 0.76 0.53 0.59 0.69 0.88 0.58 0.66 0.55 0.66 0.64 0.65 0.49 0.76 0.41 0.72 0.76 0.69 0.66 0.69 0.56 0.67 0.57 0.68 0.69 0.69 0.45 0.83 i = 1 to n measurements at each reflux rate. n = 25. Data set 2. An engineer tested 57 different concrete mixes for their compressive strengths. For each mix an accelerated cure was applied and a standard 28-day cure . A 60 ton capacity universal testing machine and a 0.25 MPa/sec loading rate was used for the compression testing. The strength results obtained for each mix and cure type were: Accelerated Strength, x 28 day Strength, MPa, y 4.8 17 3.4 14.2 3.4 14.5 8.6 23.9 8.2 23.7 8.3 25 8.4 22.9 7.3 22.5 6 21.8 5.6 18.9 4.6 17.2 3.8 15 6.9 22.2 4.7 17.5 8.2 20.2 4.9 18.5 7.7 24.2 5.5 20.2 8.9 25.7 6 20.9 4.7 16.3 7.3 20.6 3.9 15.9 5 18.1 4.7 19.5 5.8 19 5.1 19 7.5 22.3 3 15.8 7 24.6 10.6 25.2 8.7 24.1 8.1 23.9 15.3 32.8 12.4 27.8 10.8 27.8 15.1 33.5 16.4 33.5 12.9 29.1 8.5 25.9 10.2 27.6 13.8 30.3 12 27.9 11.9 28.1 9.6 26.6 8 22.8 8 22.4 10.1 24.7 11.8 26.8 12.5 30.4 14.1 34.4 7.3 22 6.9 25.2 8.2 25.2 9.3 23.7 8.5 25.6 12.1 27.6 15 points