A time study was conducted on a job that contains four elements. The observed times and performance ratings for six cycles are

shown in the following table.

Click here for the Excel Data File

Hint: the performance ratings given in this question and the Excel spreadsheet link are in percentages. It is necessary to convert them

to their decimal equivalents when solving the problem.

a$.$ Determine the average cycle time for each element. $($Round your answers to $3$ decimal places.$)$