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 nonconformances 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.

Transcribed Image Text:

Bulb Number Number of Nonconformances Bulb Number 19 20 21 Number of Nonconformances 0 4 23 24 25 26 27 28 29 30 0 0 0 10 12 14 15 16 17 18 32 34 35