Problem 1 (700 points) The process that produces a part for a 3-D printer state has a mean of 24 ounces and a standard deviation of 2 ounce. a. Specifications for a part for a 3-D printer state that the part should weigh between 23.2 and 25 ounces. Compute the capability Index (Cp or Cpk) for the process. (Round your final answer to 2 decimal places.) (250 points) Since zuis meur CPK-mean-lower spec of Specificatumits use CP CP- Specification CP= UCL - Lel/60 (25-23) 60. 2) = 1.67 b. Is the process capable? Why? (50 points) c. Samples of 16 observations are taken for the quality control evaluation (n=16). Determine upper and lower control limits that will include roughly 99.74 percent of the sample means when the process is in control. (Do not round intermediate calculations. Round your answers to 2 decimal places.) (300 points) d. Another 4 samples with 3 observations in each sample are taken to check the process. Data are listed below. Is the process in control based on the control limits from question c? Does it appear that the specifications in question a are being met? (100 points) Observation Sample Sample Sample Sample number 1 2 3 4 1 24.01 23.66 23.97 23.77 2 24.30 23.81 24.22 24.28 3 24.26 23.79 24.20 23.90 Sample mean 24.19 23.75 24.13 23.98