A textile manufacturer wants to set up a control chart for irregularities (e.g., oil stains, shop soil, loose threads, and tears) per 100 square yards of carpet. The following data were collected from a sample of twenty 100-square-yard pieces of carpet: Sample Irregularities Sample Irregularities Sample Irregularities Sample Irregularities 16 8 11 16 15 11 17 12 17 16 CI A W N - 18 8 15 13 18 10 17 9 10 14 9 8 19 10 19 12 15 14 20 7 a. Using these data, set up a c-chart with z = 3. The UCL equals and the LCL equals .(Enter your responses rounded to two decimal places.)