Orlando's assembly unit has decided to use a p$-$Chart with $3-$sigma control limits to monitor the proportion of defective copper wires produced by their production process. The operations manager randomly samples $150$ copper wires at $14$

successively selected time periods and counts the number of defective copper wires in the sample.

Table

Control Chart

Step $5$ of $8$ :

At the next time period, $150$

copper wires are sampled and $7$ defective copper wires are detected.