The following information represents time study observations for an assembly process. Find the labor standard, assume 70 minutes of each 8 hour day are used for breaks, breakdowns, and other allowances.
Element1---1.5, 1.6, 1.4, 1.5, 1.5 Performance rating 115%
Element 2---2.3, 2.5, 2.1, 2.2, 2.4 Performance rating 100%
Element 3--- 1.7, 1.9, 1.9, 1.4, 1.6 Performance rating 105%
Element 4----3.5, 3.6, 3.6, 3.6, 3.2 Performance rating 90%.