A production manager wants to control a filling process that has an overall average (1) of 705 cc. He uses K samples of size 6 and finds that the samples average range (R-bar) is 17 cc. What are the upper and lower control limits for the x-bar and R charts? Sample Mean Factor, Upper Range, Lower Range, Size, n A, D, D, 2 1.880 3.268 0 3 1.023 2.574 0 4 0.729 2.282 0 5 0.577 2.115 0 6 0.483 2.004 0 7 0.419 1.924 0.076 8 0.373 1.864 0.136 9 0.337 1.816 0.184 10 0.308 1.777 0.223 12 0.266 1.716 0.284 O X-bar chart: 713.2 and O / R chart: 696.8 and 34.1 Q x-bar chart: 713.2 and 34.1 / R chart: 696.8 and O (") None of the above O x-bar chart: 713.2 and 696.8 / R chart: 34.1 and O Q x-bar chart: 34.1 and O / R chart: 713.2 and 696.8