A large retail toy store finds that, on average, a certain cheap (under $20) electronic toy has a 5 percent damage rate during shipping. From each incoming shipment, a sample of 100 is inspected.
(a) Find the control limits for a p chart.
(b) Plot the 10 samples below on the p chart. Is the process in control?
(c) Is the sample size large enough to assume normality of the sample proportion? Explain.

Sample XIn 100 100 100 100 100 100 100 100 100 100 0.03 0.05 0.04 0.07 0.02 0.02 0.00 0.02 0.07 0.06 10