Construct an X chart-R chart for the following data set. (Leave no cells blank - be certain to enter "O" wherever required. Do not round intermediate calculations. Round your answers to 2 decimal places.) Sub group No 1 2 3 4 R 2.0 2.5 1.5 1.6 2.3 .8 2.0 7 B 9 10 11 12 13 6:00 14.0 14.5 13.4 13.8 14.5 13.4 14.0 14.9 13.3 14.2 13.2 14.9 13.2 13.1 14.9 13.1 13.3 13.9 13.7 13.6 13.0 13.4 13.3 13.9 13.4 10:00 12.0 13.4 12.4 13.4 12.9 13.5 12.0 12.6 13.2 12.9 12.1 12.9 13.5 12.8 12.6 12.7 13.2 12.5 12.4 13.1 12.5 13.5 12.2 12.8 13.1 14:00 13.7 13.5 12.4 13.9 13.9 12.7 13.8 13.4 12.1 13.8 13.1 12.2 13.8 12.8 12.4 13.0 13.8 13.2 13.8 12.1 12.8 13.3 12.0 13.5 12.4 18:00 22:00 14.0 12.6 12.0 12.7 13.9 12.9 13.7 12.3 12.2 12.6 12.7 12.9 13.8 12.8 12.8 13.6 14.0 13.9 13.9 13.1 13.8 13.9 12.7 12.5 13.8 12.9 13.8 13.3 12.1 12.7 13.8 12.6 12.4 13.7 13.6 12.9 12.5 13.1 12.4 12.0 12.7 13.6 12.2 13.3 13.3 13.3 12.4 13.0 13.4 12.5 Sum Grand Mean x bar 13.3 13.2 13.0 13.4 12.9 13.0 13.3 13.5 13.3 13.6 13.2 13.0 13.4 13.2 12.9 13.0 13.3 13.2 13.1 12.6 12.9 13.1 12.8 13.1 13.0 328.50 13.14 15 16 17 18 19 20 21 22 23 24 25 2.3 1.9 1.3 1.8 2.7 .9 1.0 2.8 1.2 1.4 1.4 1.4 1.6 1.1 1.3 1.3 1.5 1.0 40.60 1.62 X Chart 13.14 R Chart 1.62 Data Points Central line Lower controllimit (LCL) Upper control limit (UCL)