This is a book about data about how to reduce large data sets down to the critical few high-risk subsets and how to select items or transactions for testing. Most of the book is devoted to data analysis, or what is more formally described as analytical procedures. Every audit is different, yet all audits follow the same basic path planning, fieldwork, reporting, and follow-up. Each of the four phases of an audit is composed of distinct activities. With respect to data analysis and sampling, it is important to appreciate that different analytical activities occur at different stages in the audit process. Numerous exhibits and case studies are included in each chapter, helping the reader review practical applications of the concepts presented. This is a practical guide for audit practitioners to use when conducting data analysis and sampling during the course of an audit. Though this is a book on data analysis and sampling, it is important that readers have a similar starting point with respect to the audit process. Every audit is different, yet all audits follow the same basic path, beginning with planning, followed by fieldwork, reporting, and follow-up. Each of the four phases of an audit has distinct activities associated with a particular phase. With respect to data analysis and sampling, it is important to appreciate that different activities occur at different stages in the audit process. The author offers useful tips for internal auditors who are faced with a large data set wondering how to proceed, including: Foster your creativity and curiosity. Make a plan and stick to it. Risk is the key. Look at the findings of the data analysis from both the graphical/tabular and metric perspectives. Validate, validate, validate. Organize the data results. Always trust your knowledge, your experience, and your intuition. Never underestimate the value you bring to the audit.
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Donald A. Dickie, PhD, is a professional statistician who spent about a third of his career in internal auditing and the remainder in various senior executive roles with one of Canada s largest crown corporations, thus on the receiving end as a client of internal auditors. Since 2003, he has developed and taught seminars in data analysis and sampling specifically designed for internal auditors within the federal governments of Canada and the United States as well as private sector companies throughout North America. As president of D. A. Dickie Inc., he has consulting clients within Canada and the United States and appears in court as an expert witness for sampling issues raised in forensic auditing.
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