ABSTRACT

Soap been a very usefu! he,p in of vanous brands of soap bas been fluctuafing through the years as movement and progress are made in the pattern of its producUon. Re,ative Mthe a enstan ar of vanous production firms, the researcher amidst all natives focuses on the production of Carex soap of PZ Cusson pic, Aba. Hence data on the production processes such as the length, moisture content, alkalinity content and the weight of the soap were collected and as well as analyzed using the method of quality control so as to determine whether variation in production are due to chance or assignable causes. This research work applied the X-bar and R-bar charts respectively so as to accomplish its objectives. At first a test was carried out and it was determined that the data collected followed normal distribution and hence with the aid of X-bar chart it was observed that there were no changes in the alkalinity content, moisture content and length of Carex soap where as the weight of Carex soap was observed to be out of control, on the other hand, The R-chart revealed that there were changes in the process variability of weight of Carex soap meanwhile the moisture content, alkalinity content and length of Carex soap were under control, hence greater effort should be made to examine the weight of Carex soap during production run