Auditing and Accounting Cases: Investigating Issues of Fraud and Professional Ethics 3rd Edition by Jay Thibodeau,Deborah Freier

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Consult Paragraph 2 and Paragraph A5 (in Appendix A) of PCAOB Auditing Standard No. 5. Do you believe that WorldCom had established an effective system of internal control over financial reporting related to the line cost expense recorded in its financial statements? Why or why not?