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 was collected from a sample provided by the supplier. SAMPLE 1 2 3 4 5 6 7 8 9 10 IRREGULARITIES 4 6 6 6 4 2 4 1 5 6 a. Determine the 1formula26.mml, Sp, UCL and LCL for a c -chart with z = 2. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 2 decimal places.) formula53.mml Sp UCL LCL b. Suppose the next five rolls from the supplier had two, four, four, three, and seven irregularities. Is the supplier process under control? Yes No