Challenge 3-A Hospital Laundry Guideline - Higher values of Cpk and Cp indicate a more capable process. Experts recommend a process capability index of at least 1.33 for a two-sided specification. . What is Hospital Laundry's process capability Index? - 1.404 . Is this Process Capable? - Yes Guideline - Use visual inspection to determine whether the process mean is centered between the specification limits. . What is Hospital Laundry's process Process Mean? - 1.561 . Center value between the specification limits - 1.56 . Is this Process Centered? - Yes