Omega Electronics (Jaipur, India) mass produces monitors that are used for medical imaging technology. To monitor the quality of the production process, the company draws samples of 100 tubes each, inspects them, and then classifies them into good or bad units. The inspection data for 15 days of production is shown in the following table. Construct a p-chart with 3σ control limits, and determine whether the process is in control:

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Sample 11 12 13 14 10 15 Number of Defective 11 12 10 8.