Is a glass manufacturer that produces glasses of every shape and type recently it is signed a contract to supply round glasses to switch, a swiss watch manufacturer. the specifications require the diameter to be between 4.96 cm and 5.04cm. with the current production process, vetro inc. manages to produce glasses whose diameter is, on average, equal to 5cm ; however, a closer inspection reveals some variability in the process, with the diameter of the glass being normally distributed with statndard deviation equal to 0.0lcm 1, what is the capability index of vero inc ?
2, what is the maxmum standard deviation allowed for the process to meet the rigorous six-sigma standards?