Stress tests are used to study the heart muscle after a person has had a heart attack.The team investigating stress tests turnaround time has managed to reduce the amount of time it takes for a doctor to receive the results of a stress test from 68 to 32 hours on average.The team had a goal of reducing test turnaround times to between 30 and 36 hours.Given that the new average is test turnaround time is 32 hours, with a standard deviation of s-bar = 1, and n = 9, What is sigma? What is CP? What is the CPK. is the process capable?