In a control chart application, we have found that the grand average over all past samples of 6 units is x = 30 and R = 5. a. Set up x and R control charts. b. The following measurements are taken...

In a control chart application, we have found that the grand average over all past samples of 6 units is x = 30 and R = 5.

a. Set up x and R control charts.

b. The following measurements are taken from a new sample: 38, 35, 27, 30, 33, and 32. Is the process still in control?