Question: Consider a normally distributed process that cuts wood with a 'process center' of 16 inches and a standard deviation of 0.75 inches. The lower specification
Consider a normally distributed process that cuts wood with a 'process center' of 16 inches and a standard deviation of 0.75 inches. The lower specification limit is 14.75 inches, and the upper specification limit is 17.15 inches. A piece of wood that is cut too short must be scrapped at a cost of $32.00. A piece of wood that is cut too long must be re-cut by hand at a cost of $8.50. The firm runs 20,000 pieces of wood through the machine per day and works 350 days per year.
What is the annual expected fixing cost of this process?
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