Question

A firm in the upper Midwest manufactures light bulbs. Before the bulbs are released for shipment, a sample of bulbs is selected for inspection. Inspectors look for non-conformances such as scratches, weak or broken filaments, incorrectly bored turns, insufficient outside contacts, and others. A sample of thirty five 60-watt bulbs has just been inspected, and the results are shown here. Use these data to construct a c chart. Discuss thefindings.


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  • CreatedFebruary 19, 2015
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