7 5-1. The data shown here are x and R values for 24 samples of size n = 5 taken from a process producing bearings. The mea- surements are made on the inside diam- eter of the bearing, with only the last three decimals recorded (i.e., 34.5 should be 0.50345). Sample Sample Number R Number HI R 34.5 13 35.4 34.2 4 14 34.0 6 31.6 4 15 37.1 31.5 4 34.9 35.0 33.5 34.1 31.7 32.6 4 34.0 33.8 35.1 34.8 33.7 10 33.6 32.8 11 31.9 33.5 12 38.6 34.2 2 (a) Set up & and R charts on this process. Does the process seem to be in statistical control? If neces sary, revise the trial control limits. (b) If specifications on this diameter are 0.5030 + 0.0010, find the percent- age of nonconforming bearings pro- duced by this process. Assume that diameter is normally distributed