Application Of Statistical Quality Control On Defective And Non-Defective Products Of Elis Bottled Water.

ABSTRACT

The purpose of this work is to check the defective products of all basic products a case study of Elis bottled water, f it is under control. The analysis of the data was done using the shewhart technique which comprise of the p-chart to show whether the variables are under statistical control. The p-chart showed no significant change in the process production of non-defective products of Elis bottled water. There was no significant change observed in the defective products except on the defective products of 150c1 and this was due to assignable cause which can be eliminated. As a result of absence of assignable cause of variation, the water is highly recommended for drinking.