ABSTRACT
The time study is a sample from which the population is predicted. This chapter provides basic time study procedure that attempt to reduce inaccuracies from the sample present world estimates of the population of present world times. Before the study, the analyst should do a method analysis and select the operator to be studied. Timing techniques, the number of observations to make, and irregular and external observations are covered. A time study of sequential observations is a sample from a population of times. There are two approaches to determining the number of observations: statistical and importance of decision. Work methods of novices have an unusually high number of delays, fumbles, hesitations, and slow decisions; it is quite difficult for the time study technician to determine the precise rating correction for these difficulties. Once the decision has been made by management on the definition of acceptable productivity level (APL), engineers can rate performance of specific individuals versus the defined standard.
