2. Consider the x and R charts you established in Exercise 6.7 using n = 5. nold =5; Xold =34.00; Rod =4.7 (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? (b) What would be the impact of the decision you made in part (a) on the ability of the x chart to detect a 20 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 20 shift in the mean