Auditing And Assurance Services
17th Edition
ISBN: 9780134897431
Author: ARENS, Alvin A.
Publisher: PEARSON
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Question
Chapter 17, Problem 28DQP
(a)
To determine
Select the random PPS sample of 10 items
(b).
To determine
Select 10 samples using PPS and to identify the units associated by using a starting point of 1857.
(c).
To determine
Explain the
(d).
To determine
Discuss the method which is preferable in terms of ease of selection in the case
(e).
To determine
Discuss the use of MUS
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Assume that you have selected a random sample of 15 checks from a population of 800 checks. The checks you have selected are the following numbers: 664, 789, 650, 136, 365, 538, 800, 657, 110, 136, 398, 645, 214, 544, and 777. Based on this sample, evaluate the truth of the following statements regarding your findings. Describe why you feel each statement is true or false.
a. You have determined that Check No. 365 was not properly signed and was paid to a fictitious vendor. You conclude that fraud exists in the population.
b. You have determined that no fraud exists in the sample of 15 checks you evaluated. You conclude that no fraud exists in the population.
Monetary unit sampling (MUS) is the most commonly used statistical method of samplingfor tests of details because of its simplicity and its ability to provide statistical resultsin dollars. Read an article titled “Monetary-Unit Sampling Using Microsoft Excel” thatappeared in the May 2005 issue of The CPA Journal (www.nysscpa.org/cpajournal/2005/505/essentials/p36.htm) to answer the following questions.a. The authors suggest that there are three critical steps in applying MUS. What arethese 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?
This problem requires the use of ACL software, which is includedin the CD attached to the text. Information about installing and using ACL and solvingthis problem can be found in Appendix, pages 830–834. You should read all of thereference material, especially the material on sampling, to answer questions a. through e.For this problem use the “Inventory” file in the “Inventory_Review” subfolder undertables in Sample_Project. Suggested commands, where applicable, are indicated at the endof the problem requirements.a. Calculate the sample size and sampling interval for an MUS sample based on inventory value at cost (Value). Use a confidence level of 90%, materiality of $40,000,and expected errors of $2,500. (Sampling/Calculate Sample Size; select “monetary”radio button)b. What is the sampling size and sampling interval if you increase materiality to$50,000 and decrease expected errors to $1,000?c. Select the sample based on the sampling interval determined in part a. (Sampling /Sample…
Chapter 17 Solutions
Auditing And Assurance Services
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