Problem 4 ( 1opt ) Reconsider the expose machine of Problem 3 with mean time to expose a single panel of 2 minutes with a standard deviation of 1 5 minutes and jobs of 60 panels . This time , setups occur after about Go hours of run time , and now happen only between jobs lie . non- preemptive outage ) . Repair times are the same as before Compute the effective mean and CV of the process times for the 60 - panel jobs . How do these compare with the results in Problem 3