Question: Hello Please help me with this Communications situational problem!!!! I Promise to like and Rate as always thank you! Six samples of five observations each

Hello Please help me with this Communications situational problem!!!! I Promise to like and Rate as always thank you!

Hello Please help me with this Communications

Six samples of five observations each have been taken for a process. The sample means and ranges computed (in minutes) are, (mean, range): (4.04, 0.65), (3.68, 0.75), (3.68, 0.49), (3.98, 0.46), (3.63, 0.46), and (4.11, 0.47). Compute the upper control limit O a. 2.782 O b. 2.396 O c. 4.116 O d. 4.17

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