explain why ad how you solved it

14. Management at Webster, in Problem 7, is now concerned as to whether caulking tubes are being properly capped. If a significant proportion of the tubes are not being sealed, Webster is placing its customers in a messy situ- ation. Tubes are packaged in large boxes of 144. Several boxes are inspected, and the following numbers of leak- ing tubes are found: Sample Tubes 1 3 2 5 3 4 5 6 7 3 4 2 4 2 Sample 8 9 10 11 12 13 14 Tubes Sample 6 15 4 16 9 17 2 18 6 19 5 1 20 Total Tubes 5 0 2 6 2 72 Calculate p-chart three-sigma control limits to assess whether the capping process is in statistical control