The upper and lower specification limits are 4.0 and 4.04, respectively. The process standard deviation is .004, and the process average is 4.02. Which of the following is TRUE?
This process is capable of meeting the target for 4-sigma process standard and capable of producing products with 4-sigma variability specifications
This process is capable of meeting the target for 4-sigma process standard but not capable of producing products with 4-sigma variability specifications
This process is capable of meeting the target for 5-sigma process standard but not capable of producing products with 5-sigma variability specifications
Assuming that this process is in statistical control (inside the upper and lower control limits), it has a process capability index that is acceptable.