Among Other Quality Measures,the Quality of an Electronic Component Used

Among other quality measures,the quality of an electronic component used in manufacturing stereo speakers is monitored with a p-chart.In the last 25 days daily samples 60 units resulted in the following number of defective units per sample: 8,4,3,7,6,2,5,3,1,0,7,4,2,0,1,6,2,4,3,1,2,8,5,6,0.Determine the center line for this process.

A) .06
B) .03
C) .001
D) .056