Application of Statistical Quality Control in Monitoring the Production and Marketing Process of Sachet Water at Ajayi Crowther Water Factory, Oyo, Nigeria

Abstract

This study aims to analyse the application of Statistical Quality Control (SQC) in monitoring the production and marketing processes of sachet water at Ajayi Crowther Water Factory, with a focus on integrating educational technology to enhance these processes. Data were collected from the management and personnel, including the total production of bags of sachet water and the number of defective products each day for 29 days, as well as total sales each day for 40 days. A pie chart was used to determine the percentage of defective products, revealing that 1% were defective while 99% were non-defective. P and nP charts were utilized to check whether the defectives were within control limits. The control charts indicated that the process was in control; however, the process capability indices showed that the process is not capable of consistent production within the pre-set limits. An Individual X? chart was used to determine whether the sales of sachet water were in control, and the control chart confirmed that the sales process was stable. This study concluded that SQC, complemented by educational technology, has the potential to improve the quality of sachet water produced by Ajayi Crowther Water Factory. It is recommended that the factory should consistently use SQC, alongside educational technology, to monitor their production and marketing processes to enhance quality control measures. These findings could inform policymakers and stakeholders in the sachet water production industry and contribute to improving the quality of water produced and marketed in Nigeria.