Reconsider the loan application data in Table 7E.2. Set up the fraction nonconforming control chart for this

Question:

Reconsider the loan application data in Table 7E.2. Set up the fraction nonconforming control chart for this process. Use the average sample size control limit approach. Plot the preliminary data in Table 7E.2 on the chart. Is the process in statistical control? Compare this control chart to the one based on variable-width control limits in Exercise 7.5.