A company makes plastic cups. 4 samples of 15 cups were taken from an ongoing process to establish a chart for control. The samples and the number of defectives in each are shown in the following table. What upper and lower control limits would give a 3% alpha risk? [0, 0.3233] [0, 0.7265] [0, 0.5717] [0, 0.3760] [0, 0.4559] Sample 1 n No. of Defectives 15 2 2 15 0 3 15 3 4 15 5