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IE$5303-$EXAM$-$II$-$PRACTICE$-$PROBLEMS

$9.$ After inspecting $50$ assemblies, the total count of nonconformities is $350.$ What are the central line and trial control limits for a count of nonconformities chart?

$10.$ For the following data, determine the defects per unit $(u)$ and control limits for $u$ chart. If there are any out$-$of$-$control points, specify the lot numbers $($Ignore Out$-$of$-$Control conditions related to patterns:

$\backslash$table$[[$Lot$,$Sample Size,# Nonconformities,$u,$UCL,LCL$],[1,25,62,,,],[2,24,75,,,],[3,22,59,,,],[4,23,93,,,],[5,25,67,,,],[6,26,45,,,],[7,30,77,,,],[8,21,43,,,],[9,24,43,,,],[10,30,36,,,],[$Total$,,,,,]]$