This text takes an integrated approach, and places emphasis on modeling and the application of pure methods rather than statistical techniques. This emphasis allows readers to learn how to solve business problems, not mathematical equations, and prepares them for their role as decision makers. All models and analyses in the book use Excel so readers make decisions without having to complete difficult calculations. The book is also accompanied by KaddStat, an easy-to-use add-in to Excel, which makes it easier to run complex statistical tests on Excel.