McGraw-Hill authors represent the leading experts in their fields and are dedicated to improving the lives, careers, and interests of readers worldwideLarry L. Stephens is Professor of Mathematics at the University of Nebraska at Omaha, and has been on the faculty for more than 25 years.Lana C. Stephens is a Nurse Practitioner for Alegent Health Care in Council Bluffs, Iowa. She was Program Director for the Medical Assistants program at Iowa Western Community College and a research coordinator at the University of Nebraska Medical Center.Eizo Nishiura is Associate Professor Emeritus of Mathematics at Queensborough Community College in New York.Larry J. Stephens is a professor of mathematics… at the University of Nebraska at Omaha. He has over 25 years of experience teaching mathematics and statistics. He has taught at the University of Arizona, Gonzaga University, and Oklahoma State University, and has worked for NASA, Livermore Laboratory, and Los Alamos National Laboratory. Dr. Stephens is the author of "Schaum's Outline of Beginning Statistics" and the co-author of "Schaum's Outline of Statistics, " both published by McGraw-Hill. He currently teaches courses in statistical methodology, mathematical statistics, algebra, and trigonometry.