12 A production process, sampled 30 times with seven items per sample, resulted in these X-bar bar and R values: x-bar-bar - 28.5 inches and R-bar = 16 inches a. Calculate the x-bar and limits for this process (round to 2 decimals). UCL = LCL = 3 points Skipped UCLR = ebook References LCLR b. Does the following set of run test sample means indicate that the process is in control or out of control: 28.01.28.8. 28.1. 28.9. 28.01, and 29.01? Demonstrate and explain why or why not do not just answer yes or no. Process is control for the Mean (x-bar chart) (answer options: in or out of) Why? |(answer options: no rules violated violates Rule 1. violates Rule violates Rule 3, violates Rule 4, violates Rule 5. or violates Rule 6) - if it violates, pick the first rule violated c. After the run test above, a new run test was conducted with nine samples of the item. The run test, produced these sample means: 28.55, 2865. 29.00, 28.72, 28.9, 286, 285, 2865, and 28.9. Is the process in or out of control for the mean? Demonstrate and explain why or why not, do not just answer yes or no. Process is control for the Mean ix-bar chart). Canswer options: in or out of) why? (answer options: no rules violated violates Rule 1, Violates Rule 2. violates Rule 3. violates Rule 4, violates Rule 5or violates Rule 6) if it violates, pick the first rule violated d. Is this process capable of meeting customer specifications of 28 +0.5 inches? Demonstrate and explain why or why not, do not just answer yes or no Process is of meeting the customer's specifications. (answer options capable or not capable) Why? (answer options both specs are inside the controllimits; both specs are outside the controllimits: one spec is inside and one spec is outside the control limits