A shirt manufacturer buys cloth by the 100-yard roll from a supplier. For setting up a control chart to manage the irregularities (e.g.. loose threads and tears), the following data were collected from a sample provided by the supplier. 44 55 66 75 88 92 10 4 a. Determine the c, Sp, UCL and LCL for a c-chart with z=2. (Leave no cells blank. Round up any negative LCL value to "0". Round your answers to 2 decimal places.) SAMPLE 1 2 IRREGULARITIES 2 3 C 0.04 Sp UCL LCL 0.09 0.00 35 b. Suppose the next five rolls from the supplier had four, four, four, three, and five irregularities. Is the supplier process under control? Yes No < Prev 3 of 17 Next >