A design engineer wants to construct a sample mean chart for

A design engineer wants to construct a sample mean chart for controlling the service life of a halogen headlamp his company produces. He has the following sample data available and knows his long term sample mean has been about 500 hours. a. If the specification is for engine to be at least 495 hours, what is the CpK? Sample Service Life (hours) 1 495 500 505 500 2 525 515 505 515 3 490 500 480 490

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