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Quality Style manufactures self-assembling furniture. To reduce the cost of returned orders, the manager of its quality control department inspects the final packages each day using randomly selected samples. The defects include wrong parts, missing connection parts, parts with apparent painting problems, and parts with rough surfaces. The average defect rate is 4.30 per day. (a1). (a2) Construct a control chart with 3-sigma control limits: (If the lower control limit is negative, round the LCL to zero and all other answers to 2 decimal places, e.g. 15.25.)