An airline performed 4000 preflight inspections during one month. Each inspection checks 50 items. What is the maximum number of defects that could occur during a year if the process is operating at a six-sigma level?

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The Answer of An airline performed 4000 preflight inspections during one month. Each inspection checks 50 items. What is the maximum number of defects that could occur during a year if the process is operating at a six-sigma level?

An Airline Performed 4000 Preflight Inspections During One Month