4. Consider the problem you worked in H\"! #2. The weight in grams {a} of a plastic component is to be monitored. Ten samples of n=4 components were taken from the manufacturing process as shown below: m 3) Find the limits for XBar and s charts manually. Does vaur chart show the process is in control? b) Repeat (a) using Minitab. c) If specications are set at 503 i 23.. what is your estimate of the fraction defective (use s-bar/c. to estimate a)? How does this compare to the answer you got from HW #2