Suppose that 20 of the parts manufactured by the processes in Exercise 8.9 were assembled so that their dimensions were additive; that is,
x=x1 +x2 +. . . +x20
Specifications onxare 2000 ±200. Would you prefer to produce the parts using process A or process B?
Why? Do the capability ratios computed in Exercise 8.9 provide any guidance for process selection?
Consider the two processes shown in Table 8E.1 (the sample sizen=5):
Specifications are at 100 ±?10. CalculateCp,Cpk, andCpmand interpret these ratios. Which process would you prefer to use?
TABLE 8 E.1
Process Data for Exercise 8.9
Process A
Process B
=100
=105
3
= 1
Already registered? Login
Not Account? Sign up
Enter your email address to reset your password
Back to Login? Click here