The main goals of this chapter are to: Understand the basic principles of sampling, including the differences between statistical and nonstatistical sampling and sampling and nonsampling risk; understand the basic steps and procedures used in implementing a sampling plan; identify the two situations in which sampling is used in an audit. | McGraw-Hill/Irwin Copyright © 2013 by The McGraw-Hill Companies, Inc. All rights reserved. Module E Overview of Sampling Learning Objectives Understand the basic principles of sampling, including the differences between statistical and nonstatistical sampling and sampling and nonsampling risk. Understand the basic steps and procedures used in implementing a sampling plan. Identify the two situations in which sampling is used in an audit. Understand how the basic steps and procedures used in a sampling plan apply to an audit. Mod E- When is Sampling Used? Exact information not needed Large population Trades effectiveness for efficiency Uses of Sampling in Auditing Study and evaluation of internal control Substantive procedures Mod E- Sampling Risk Risk that the decision made based on the sample differs from the decision that would have been made by examining the population Non Sampling Risk Incorrect conclusion unrelated to the nature of the sample Mod E- Sampling Approaches Statistical sampling Nonstatistical sampling Mod E- Steps in Sampling: Planning Determine the objective of sampling Define the characteristic of interest Define the population Mod E- Steps in Sampling: Performing Determine sample size Select sample items (ensure entire population is included) Unrestricted random selection: Systematic random selection: Block selection: Haphazard selection: Measure sample items Mod E- Steps in Sampling: Evaluating Evaluate sample results Mod E- Precision and Reliability Precision (Allowance for sampling risk) Reliability (Confidence) Precision Interval Mod E- Documentation Involves all seven steps of sampling process Mod E- Attributes Sampling Used to estimate the extent to which a characteristic exists within a population Used in the auditor’s study of internal control Goal: Estimate the rate at which the client’s internal control is failing to function effectively and compare to an allowable . | McGraw-Hill/Irwin Copyright © 2013 by The McGraw-Hill Companies, Inc. All rights reserved. Module E Overview of Sampling Learning Objectives Understand the basic principles of sampling, including the differences between statistical and nonstatistical sampling and sampling and nonsampling risk. Understand the basic steps and procedures used in implementing a sampling plan. Identify the two situations in which sampling is used in an audit. Understand how the basic steps and procedures used in a sampling plan apply to an audit. Mod E- When is Sampling Used? Exact information not needed Large population Trades effectiveness for efficiency Uses of Sampling in Auditing Study and evaluation of internal control Substantive procedures Mod E- Sampling Risk Risk that the decision made based on the sample differs from the decision that would have been made by examining the population Non Sampling Risk Incorrect conclusion unrelated to the nature of the sample Mod E- Sampling .
