A small company wants to audit employee travel expenses in an effort to improve the expense reporting procedure and possibly reduce expenses. The company does not have resources to examine all expense ...

Sampling is a tool researchers use for marketing, sociology or empirical study. In order for sampling to be productive, the data analysis must not be tainted. There are techniques for creating a ...

A state health agency plans to conduct a state-wide survey of a variety of different hospital services. The agency plans to select a probability sample of individual discharge records within hospitals ...