Abstract:
In the era of advanced and rapidly developing industries, drinking water companies
have caused drinking water companies to improve the quality of their products, such as
product packaging. Damage or defects on water companies when carrying out
production can occur due to factors of employees, equipment, methods, and finished
materials from suppliers. So it is necessary to carry out quality control to be able to
minimize the causes of defects or packaging damage that occur during the production
process. In this study, we will discuss the statistical quality control of drinking water
bottles at PT. Agrimitra Utama Persada Pekanbaru using the p-chart method with a
confidence level of 97.33%. The results of this study showed that the average damage to
packaging was 0.018, the upper control control limit was 0.02404, the lower control
control limit was 0.01436. Based on the p-chart, it is known that defects or production
damage indicate conditions that are out of control, using the pareto diagram, it is known
that the most dominant damage is non-sticky lids at 43.94% and the least is leaky lids at
22.41%.
