Question: A beer company regularly uses a control chart application tests its filling stations accuracy. Thirty random bottles, each containing 6 items, were taken in a

A beer company regularly uses a control chart application tests its filling stations accuracy. Thirty random bottles, each containing 6 items, were taken in a control chart application and it was found that the grand average is = 12.14 oz and = 0.3.

a. Determine the upper and lower control limits for the and R charts. (7)

b. The following measurements are taken last week: 12.2, 12.6, 11.8, 12.5, 12.2 and 12.5. Is the process still in control? Provide complete logic for your answer. (3)

Please show all work! Thank you :)

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