the difference between the upper specification and the lower specification for a process is
1. The difference between the upper specification and the lower specification for a process is 0.6. The standard deviation is 0.1. What is the process capability ratio, C p? Interpret this number. 2. Meena Chavan Corp.âs computer chip production process yields DRAM chips with an average life of 1,800 hours and s = 100 hours. The tolerance upper and lower specification limits are 2,400 hours and 1,600 hours, respectively.