Problem #3 (30 pts) Plastic keychains are produced in a company named PUNE Plastics. The plastic material is first molded and then trimmed to the required shape. The cure times (which is the time for the plastic to cool) during the molding process affect the edge quality of the keychairs produced. The aim is to achieve statistical control of the cure times using X and R-charts. Cure time data of 36 samples, each of size lour, shown in the Excofile. Problem-3 worksheet. The first 24 samples were taken in January and February, and the last 12 samples were taken in March This process is new.so the process standard deviation is not available. Questions 3.1 Prepare and R. charts using these data with the standard 3 starva control micorutants A2, D3 and DA see the factors worksheet). 3.2 Analyze the charts and comment on whether the process appears to be lo control and statale. 3.3 Is there any change in the process waitiolion (... the presence of condom ond assignable variation) from January through March Briefly explain your answer E17 XV for 39.25132 SONO D A B Sample No. Observations 2 1 32.2023 32.02005 32.71018 29.3762 3 2 26.91603 29.77775 33.92696 33.78366 4 3 35.05322 32.93284 31.51641 27.73615 5 4 32.12483 29.32853 30.99709 31.39641 6 5 30.09 172 32.43938 27.84725 30.70726 7 6 30.04835, 27.23709 22.01801 28.69624 8 29.30273 30.83735 30.82735 31.90733 9 8 31.6583 29.7833 31.8791 33.9125 10 9 34.4643 25.1848 37.76689 39.21143 1 10 41.34268 39.5459 29.5571 32.5735 12 11 29.473) 25.3784 25.0438 24.0035 13 12 25.4671 34.8516 30.1915 31.6222 14 13 46.25184 34.71356 41.41277 44.63319 16 14 35,4475 38.83289 33.0886 31.6349 16 15 34.55143 33.8633 35.18869 42.31515 17 16 43.43549 37.36371 38.85718 39.251321 18 17 37.05298 42.47056, 35.90282 38.21905 19 18 38.57292 39.06772 32.2209 33.202 20 19 27.0305 33,6397 26.6306 42.79 176 21 20 27.34667 27.50085 29.94412 28.21249 22 21 27.79695 26.15006 31.21295 31.33272 23 22 33.53255 29 32971 29.7046 31.053 24 23 37.98409 32.25942 31.9 1741 25 29.44279 24 33.82722 30.32543 25.38117 26 33.70124 25 29.68356 29.56677 27.23077 27 34.00417 26 32.6264 26.3203 32.07892 28 36.17198 27 30.29575 30.52863 24.43315 29 26285241 28 26.43856 30.48251 32.43033 30 29 25.2779 33.94916 30.47406 30.76162 31 30 26.91685 27.66133 31.46936 25.87447 32 31 28.46547 28.29937 20.99441 29.66926 33 32 26.84273 30.51801 32.23614 31,14511 -34 33 30.75136 32.99922 26.06452 30.47104 35 34 31.25754 24.2947335.46477 26.19981 36 35 31.24921 25.57954 35.00365 26.41126 37 36 31241554 35.00049 33.60909 35 27.52131 31.23591 Deady Problem:13 Problema Accessibility investigate Problem-3 Factors Problems 701 Cloudy