Problem $7-3$

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.

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

decimal places.$)$

b$.$ Find the normal time for each element. $($Round your intermediate calculations and

final answers to $3$ decimal places.$)$

c$.$ Assuming an allowance factor of $15$ percent of job time, compute the standard time for

this job. $($Round your intermediate calculations and final answers to $3$ decimal

places.$)$