7. Ten samples of 15 parts each were taken from an ongoing process to establish a p-chart for control. The samples and the number of defectives in each are shown in the following table: Sample 1 2 3 0004 L 6 7 0008 9 10 n 15 15 15 15 15 15 15 15 15 15 Number of Defective Items in the Sample 3 1 0 O ON OM - O 2 3 50 a. Develop a p-chart for 95 percent confidence (1.96 standard deviation). b. Based on the plotted data points, what comments can you make?

7. Ten samples of 15 parts each were taken from an ongoing process to establish a p-chart for control. The samples and the number of defectives in each are shown in the following table: a. Develop a p-chart for 95 percent confidence (1.96 standard deviation). b. Based on the plotted data points, what comments can you make