The process of gathering evidential matter to support an opinion on a client's financial statements involves several types of testing procedures. In the course of the audit, the CPAs perform detailed tests of samples of transactions from large-volume populations. CPAs may also audit various types of transactions by tracing a few transactions of each type through all stages of the accounting information system.

Required:

What are the audit objectives associated with:

a. A sample of transactions from a large-volume population?

b. Tracing a few transactions of each type through all stages of the accounting information system?