Question: please show how to find the answer for upper and lower control limits for one of the samples 1. Use the following observations and plot

please show how to find the answer for upper and lower control limits for one of the samples

1. Use the following observations and plot control charts. You are required to compute mean and range of each sample, lower and upper control limits. Describe if the process is in control or not and what could be assignable causes Sample 1 2 3 4 5 6 7 8 9 10 11 12 2.05 7.21 3.12 2.96 3.25 5.47 6.05 1.87 3.33 2.61 3.52 3.18 OBSERVATIONS 6.27 1.5 5.11 3.81 3.11 2.98 2.03 2.65 4.15 2.15 5.66 11.73 1.35 2.56 2.66 3.45 1.37 5.2 4.15 5.01 1.63 1.29 2.15 1.88 3.17 3.18 1.98 2.74 8.06 2.98 3.8 3.05 1.18 3.45 2.06 1.15 1.05 3.78 2.65 2.15 3.74 4.95 2.34 3.63 3.05 3.16 2.07 3.11

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