Q6. Consider the following pilot samples to construct the mean and range charts. The data below shows the size in CC. Construct the mean and range charts showing all control (action) -upper and lower limits, and warning upper and lower limits. Sample Number Item1 Item2 Item3 Item4 Sample 1 111.9 112.5 112.4 112.7 Sample 2 112.5 112.5 112.4 112.8 Sample 3 112.2 112.8 112.7 112 Sample 4 1 12.3 112.4 1 12.8 112.4 Sample 5 112.1 112.8 112.4 111.9 Sample 6 112.6 112.4 112.1 112.3 The following day, 6 samples were taken to check if the process under control or not. Theses samples are as follows: Sample Number Item1 Item2 Item3 Item4 Sample 1 111.9 111.5 112.4 112.3 Sample 2 112.5 111.5 113.4 1 11.8 Sample 3 112.2 111.8 111.7 112 Sample 4 114.3 111.4 111.8 113.4 Sample 5 115.1 111.8 112.4 110.9 Sample 6 111.6 110.4 110.1 115.3 Is the process under control? Why? What actions should you take