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Sampling: Design and Analysis for Performance Auditing

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Date(s): May 07, 2018 - May 08, 2018
Time: 8:30AM - 5:00PM
Registration Fee: $329.00
Cancellation Date: Apr 30, 2018
City: Austin

Course Description

Understand and appreciate the basic concepts of statistical sampling.  Learn how sampling can be applied to enhance your data collection and analysis efforts.  Feel more confident in planning your audits, including knowing how and when to apply random v. judgmental sampling approaches, choosing the appropriate sample size, and analyzing the data to fully address your audit findings.

Potential CPE Credits: 16.0
Govt Hours: This class meets 16.0 hours of the 24-hour requirement for governmental CPE under Government Auditing Standards (yellow book), in most cases.
Technical Hours: This class meets 16.0 CPE credits of technical training in compliance with Texas Admin. Code Rule 523.102.

Instruction Type: Classroom
Experience Level: ALL
Category: Auditing

Course Objectives

Upon completion of this course, participants will be able to:

  • Choose an appropriate sample design for the audit objectives
  • Understand the application of nonprobability (judgmental) sampling
  • Understand the application of probability sampling
  • Choose appropriate sample sizes
  • Minimize errors and bias
  • Analyze sample data
  • Report results from probability and nonprobability sample

Course Outline


Module 1: Introduction (class exercise)

Module 2: Nonprobability Sampling (class exercise)

Module 3: Probability Sampling

Module 4: Types of Probability Samples (exercise & end of day)

Module 5: Sample Size & Audit Objectives (class exercise)

Module 6:  Sources of Error and Bias (class exercise)

Module 7:  Analyzing Sample Data (class exercise)

Module 8: Reporting Our Results (class exercise)



No prerequisites required.


Jim Ashley

James D. Ashley is currently a senior mathematical statistician at the U.S. Government Accountability Office (GAO) and has over 10 years’ experience applying sampling and statistical analysis techniques to a wide range of government audits. James is a certified faculty member for GAO's Learning Center and is an adjunct professor for the graduate certificate program in survey design and data analysis at the George Washington University. Prior to joining GAO, James served as mathematical statistician for the U.S. Census and the U.S. Postal Service, Office of the Inspector General. James earned a B.S. in mathematics and statistics from Northwest Missouri State University and an M.S. in applied statistics from the George Washington University. He lives in Washington, D.C., with his wife, two young children, and dog.

Additional Information

TAC Rule 523.142(g) requires the CPE Sponsor to monitor individual attendance and assign the correct number of CPE credits. Participants will be asked to document their time of arrival and departure in compliance with this Rule. Additionally, attendance will be monitored throughout the day and CPE certificates will reflect actual attendance of each participant.

If you are making travel plans to come to Austin, we recommend making "refundable" air and hotel reservations or waiting until 14 days before the class to actually book your reservations. Courses are occasionally canceled or rescheduled due to low enrollment. We determine whether a course has enough participants 16 days prior to the course date. If we cancel or reschedule, we will email the participant and his or her billing contact no later than 14 days before the original class date.

The course coordinator will contact you with parking information. Handicapped parking is free at the meters around the downtown area.

Vending machines with Coca-Cola products and various snack items are available. There is also a refrigerator and microwave in our coffee bar area. Feel free to bring in your own drinks and food if you prefer.

You might want to bring a light sweater or jacket, as room temperatures vary.

To see answers to our Frequently Asked Questions, visit

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