Beta electronic company manufactures resistors on mass production basis. At some intermediate point of production line, 10 samples of size 100 each have been taken. Resistors within each sample were classified into good or bad. The related data are given in the following table. Construct a P-chart with 3 sigma limit and comment on the process.

Sample Number 1 2 3 4 5 6 7 8 9 10 No. of Defective Resistors 12 15 20 14 9 20 15 10 9 8.

AppendixLO1