Consider the x and R charts you established in Exercise 6.7 using n = 5.

(a) Suppose that you wished to continue charting this quality characteristics using x and R charts based on a sample size of n =3. What limits would be used on the x and R charts? for n new = 3
(b) What would be the impact of the decision you made in part (a) on the ability of the x chart to detect a 2 shift in the mean?
(c) Suppose you wished to continue charting this quality characteristic using x and R charts based on a sample size of n = 8. What limits would be used on the x and R charts?
(d) What is the impact of using n = 8 on the ability of the x chart to detect a 2 shift in the mean?

n,,-5X,,-34.00; Roid=4.7 ald