Question: A production process operates with 10% non-conforming output. Every hour a sample of 20 units of product is taken, and the number of non-conforming units

A production process operates with 10% non-conforming output. Every hour a sample of 20 units of product is taken, and the number of non-conforming units counted. If one or more non-conforming units are found, the process is stopped and the quality control must search for the cause of non-conforming production. Find the probability that the process is in an out of control state

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