What trade-offs are involved in each of these decisions?

What trade-offs are involved in each of these decisions?

a. Deciding whether to use two-sigma or three-sigma control limits.
b. Choosing between a large sample size and a smaller sample size.
c. Trying to increase the capability of a process that is barely capable.
2. Who needs to be involved in setting quality standards?
3. Name several ways that technology has had an impact on quality control