a. What are the Motion Study Principles'? 2 b. 3 A time study of an assembly operation yielded the following observed times for one element of the job, for which the analyst gave a performance rating of 1.59. Using an allowance of X (X is left 2 digits of IUB ID) percent of job time, determine the appropriate standard time (OT, NT and ST) for this operation. i (Observation) 1 2 3 4 5 6 7 8 9 10 Time, x (Minutes) 1.5 1.4 1.3 1.7 1.8 1.2 1.6 1.5 1.8 1.7 a. What are the Motion Study Principles'? 2 b. 3 A time study of an assembly operation yielded the following observed times for one element of the job, for which the analyst gave a performance rating of 1.59. Using an allowance of X (X is left 2 digits of IUB ID) percent of job time, determine the appropriate standard time (OT, NT and ST) for this operation. i (Observation) 1 2 3 4 5 6 7 8 9 10 Time, x (Minutes) 1.5 1.4 1.3 1.7 1.8 1.2 1.6 1.5 1.8 1.7