15. A 50 volt battery must be between 55 and 45 volts when it leaves the factory. Two hundred samples of batteries have yielded the following data: average charge of 49 volts with a standard deviation of 2.5 volts. What is the process capability? A) 0.06 B) 0.80 C) 0.53 D) 0.12 E) None of the above 16. Graphical data analysis, hypothesis tests, and process modeling and simulation are the tools used in the phase of the DMAIC process. A) define B) measure C) analyze D) improve E) control Question (2) [8 marks]: Answer the following short questions: a) Describe Taguchi's perspective of ideal quality b) Briefly, define each of the steps in the DMAIC process