4. Given the data below, do the following: a) Compute the mean and range for each sample. b) Compute the CL, UCL and LCL of the given data using k = 3. Construct an X-bar chart. Sample Number Observations 1 32 36 42 28 32 40 3 39 52 28 4 50 42 31 5 42 45 34

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