CD Skripsi
Pengendalian Kualitas Roti di PT. Rotte Ragam Rasa dengan Metode Statistical Quality Control
The purpose of this research was to evaluate the quality control at PT. Rotte Ragam Rasa using statistical quality control methods. This research was conducted at Rotte Bakery Garuda Sakti and H.R. Soebrantas outlets. The data in this research was collected through field observations, interviews, and literature review. The data was analyzed using p-chart, process capability, quality cost analysis, and cause and effect diagrams. The results of the analysis using p-chart showed that quality control at Garuda Sakti outlet is not statistically controlled because of special cause variation while quality control at H.R. Soebrantas outlet is statistically controlled, the variation in the process caused by common cause variation. The process capability of the production is below the standard (Cp < 1), so improvements need to be made. The quality cost analysis showed that the actual total quality cost incurred by the Rotte Bakery Garuda Sakti outlet is Rp9.547.000, while the actual total quality cost incurred by the Rotte Bakery H.R. Soebrantas outlet is Rp9,031,498.08. Based on analysis using cause and effect diagrams, the most dominant factor in defective products is the machine that had an impact of product quality. The company needs to inspect the condition of the machines to reduce quality control costs and increase process capabilities at Garuda Sakti and H.R. Soebrantas outlets.
Keywords: Statistical quality control, p-chart, process capability, quality cost, cause and effect diagram
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