The quality assurance manager is assessing the capability of a process that puts pressurized grease in an aerosol can. The desig
n specifications call for an average of 60 pounds per square inch (psi) of pressure in each can with an upper tolerance limit of 65 psi and a lower tolerance limit of 55 psi. A sample is taken from production and it is found that the cans average 61 psi with a standard deviation of 2 psi. What is the capability of the process