The upper and lower specification limits for a certain product are 7.3 lbs. and 7.0 lbs. Actual data indicates that the product is currently running at an average of 7.465 lbs., with a standard deviation of 0.03039 lbs. The calculations indicate Cp=1.645 and Cpk=-1.81. What conclusions can be made about the process? Group of answer choices The specification limits must be set unrealistically. The Cp and Cpk values indicate that the process is capable but not centered. There is something wrong with the calculations; a negative Cpk is not possible. The process is close to 6 sigma; the negative Cpk is irrelevant