What distribution is used to determine the OC curve for an attributes sampling plan?

Benchmarking might be defined as any of the following EXCEPT:

When trying to find all possible causes of a problem, which of the following tools would be useful?
. Systematic troubleshooting and brainstorming.
. Fishbone diagrams and histograms.
. Checklists and scatter diagrams.
. Control charts and graphs.

A comprehensive corrective action program is initiated at a large company. Input for CARs are received from customers, internal and external audits, material review reports and other sources. Which two of the following groups would usually administer and control the CAR process?
I. Management review team.
II. Quality department.
III. Corrective Action Board.
IV. Material Review Board.

Which of the following is NOT a statistical level of measurement?