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(1a). The design specifications for the weight of a disk drive is 0.620 +/- 0.00

ID: 420060 • Letter: #

Question

(1a). The design specifications for the weight of a disk drive is 0.620 +/- 0.009 pounds. The manufäcturing process has an average of o.621 pounsds and a standard deviation of 0.004 pounds. What is the process capability index Cpk for this situation? (Show three significant digits after the decimal point) (b). The current process mean of a critical dimension is 1,001 inches with a standard deviation of 0.0005 inches. The specification calls for this to be between 0.995 and 1,005 inches. For maximizing Cpk, the process mean should be changed to what value?

Explanation / Answer

Answer: 1

Part A:

Part B: