Application of proportion defective chart in monitoring process stability at Drinkam Factory, Otefe-Oghara

The purpose of this research is to demonstrate how attribute control charts may be used to assess water production in order to preserve product quality and market competitiveness. The data for the research were concentrated on the Otefe-Oghara Drinkam Water factory’s production process. The p-chart was used to track the water production’s in-control status in terms of minimizing leakage. Since certain data/observation points fall outside the control limit, the analysis’s conclusion indicates from the graph of the p-chart that the production process is not statistically under statistical control. This shows that, based on the amount of leaks every day, the production process is statistically out of control. Days 2, 7, 8, 9, 18, and 27 of the field survey revealed the variations. It was determined that the Drinkam water factory’s production process is statistically uncontrollable in terms of the features of sachet water leakage. This demonstrates that the issue is likely an assignable source of variation; as a result, the production days highlighted require extra evaluation to avoid recurrence.