The Quality of an Electronic Component Used in Manufacturing Cell

Multiple Choice

The quality of an electronic component used in manufacturing cell phones is monitored with a p chart.In the last 20 days,daily samples of 75 units resulted in the following number of defective units per sample: 8,4,3,7,3,1,0,7,4,2,0,1,6,2,4,3,1,2,8,and 5.Find the appropriate center line.

A) .0473
B) .2667
C) .1067
D) .0133