Monetary unit sampling (MUS) is the most commonly used statistical method of sampling for tests of details because of its simplicity and its ability to provide statistical results in dollars. Read an article titled "Monetary-Unit Sampling Using Microsoft Excel" that appeared in the May 2005 issue of The CPA Journal (www.nysscpa.org/cpajournal/2005/505/essentials/p36.htm) to answer the following questions.

Required
a. The authors suggest that there are three critical steps in applying MUS. What are these steps?
b. How do the authors indicate that an MUS sample size is determined?
c. What two factors must be considered when evaluating the results of the sample?