ABSTRACT
Statistics and the supervisor Company policy regarding performance, accuracy and similar criteria governs the standards which the supervisor must attain in the course of the construction process. Certain targets are set by the specifications governing the work, and the level of attainment must be related to these according to the quality policy. To meet the demands made upon him by such quality targets, the management and the client, the supervisor controlling the construction process must know where to aim and how to adjust his aim to meet the targets. The most economic method of working will be to so adjust performance targets that the results just exceed the minimum requirements set by specifications. The use of statistical methods in studying results and adjusting the aim accordingly is an extremely powerful tool of supervision.
