This text is the 12th edition of STATISTICS FOR BUSINESS AND ECONOMICS. With this edition we welcome two eminent scholars to our author team: Jeffrey D. Camm of the University of Cincinnati and James J. Cochran of Louisiana Tech University. Both Jeff an Jimareaccomplished teachers, researchers, and practitioners in the fields of statistics and business analytics. Jim is a fellow of the American Statistical Association. You can read more about their accomplishments in the About the Authors section which follows this preface. We believe that the addition of Jeff and Jim as our coauthors will both maintain and improve the effectiveness of Statistics for Business and Economics.

本文是《商业与经济统计》第12版。在本版中，我们欢迎两位著名学者加入我们的作者团队：辛辛那提大学的杰弗里·D·卡姆和路易斯安那理工大学的詹姆斯·J·科克伦。Jeff an Jimare都完成了统计和商业分析领域的教师、研究人员和从业者。吉姆是美国统计协会的会员。你可以在前言后面的“关于作者”一节中了解更多他们的成就。我们相信，增加杰夫和吉姆作为我们的合著者，既能保持和提高商业和经济统计的有效性。