Assume you assemble screens for a local screen printer. You require angle cut 2x
ID: 423728 • Letter: A
Question
Assume you assemble screens for a local screen printer. You require angle cut 2x2 wood pieces 24 inches long, but can use them as long as they're between 23.8 and 24.25 inches long. You pay your nephew to cut these after school because he's needing more money for college with the recent scholarship reductions and tuition increases at his university. A study of 100 pieces from a recent production run found an average length of 24.1 inches and a standard deviation of 0.06 inches. Which of the following statements best reflects this situation?
A)Cp=1.25, Cpk=.833, the process is not capable, but could be if process control was in place to keep it centered.
B)Are you kidding? This is a six-sigma process and the kid deserves a scholarship!
C)Are you kidding? You hired your nephew? Fire the kid and get a supplier that has a capable process. (or at least get some of the stuff from your niece who can keep a scholarship)
D)Cp=1.25, Cpk=1.25, the process is capable, but could be improved with process control (to keep it centered).
E)Cp=1.25, Cpk=.833, the process is capable, process control would have no role in preventing defects.
A)Cp=1.25, Cpk=.833, the process is not capable, but could be if process control was in place to keep it centered.
B)Are you kidding? This is a six-sigma process and the kid deserves a scholarship!
C)Are you kidding? You hired your nephew? Fire the kid and get a supplier that has a capable process. (or at least get some of the stuff from your niece who can keep a scholarship)
D)Cp=1.25, Cpk=1.25, the process is capable, but could be improved with process control (to keep it centered).
E)Cp=1.25, Cpk=.833, the process is capable, process control would have no role in preventing defects.
Explanation / Answer
A)Cp=1.25, Cpk=.833, the process is not capable, but could be if process control was in place to keep it centered.
The process is not capable as the value of Cp is less than 1.33 and therefore this is not desirable in the process.
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