a)You are in the development phase of project and are beginning to establish capable processes. One critical parameter has preliminary specification limits of 30 and 70 for the lower specification limit and upper specification limit, respectively.Initial data show the C_pk to be 1.0, based on a mean value of 45.What is the ideal sample mean and what is the variability (standard deviation) of the process?Show your work.(20 marks)

b)Based on the observed capability, what is the expected defect rate and yield?Briefly explain three possible strategies to improve the capability of your process and avoid defects.(15 marks)