A time study was conducted on a job that contains four elements. The observed times and performance rating for six cycles are shown in the following table. Observations (minutes per cycle) Element "Performance Rating" 1 2 3 4 5 6 1 90% 0.44 0.50 0.43 0.45 0.48 0.46 2 85 1.50 1.54 1.47 1.51 1.49 1.52 3 110 0.84 0.89 0.77 0.83 0.85 0.80 4 100 1.10 1.14 1.08 1.20 1.16 1.26 a- Determine the average cycle time for each element. b-Find the normal time for each element. c-Assuming an allowance factor of 15 percent of job time,compute the standard time for this job.