Note that in Exercise 7.29 there are only four different sample sizes; n = 100, 150, 200,

Question:

Note that in Exercise 7.29 there are only four different sample sizes; n = 100, 150, 200, and 250. Prepare a control chart that has a set of limits for each possible sample size and show how it could be used as an alternative to the variable-width control limit method used in Exercise 7.29. How easy would this method be to use in practice?