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When a robot welder is functioning properly the cylinders it produces burst (on average) at 3400 psi, with known standard deviation 100 psi.  Determine the 3-Sigma mean control chart limits.  Test lot sample sizes are n=4 cylinders randomly selected from the production line. a. Centerline = ____   b. Upper Limit = ____   c. Lower Limit = ____

When a robot welder is functioning properly the cylinders it produces burst (on average) at 3400 psi, with known standard deviation 100 psi.  Determine the 3-Sigma mean control chart limits.  Test lot sample sizes are n=4 cylinders randomly selected from the production line. a. Centerline = ____   b. Upper Limit = ____   c. Lower Limit = ____

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
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When a robot welder is functioning properly the cylinders it produces burst (on average) at 3400 psi, with known standard deviation 100 psi.  Determine the 3-Sigma mean control chart limits.  Test lot sample sizes are n=4 cylinders randomly selected from the production line.

  • a. Centerline = ____

 

  • b. Upper Limit = ____

 

  • c. Lower Limit = ____

 

  • d. What is the probability that random variation will exceed the ± 3-sigma limits ____. (four decimal places with zero before the decimal)
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