Intended for one semester introductory econometrics courses, this text is not in a theorem-proof type format. It emphasizes motivation, understanding, and implementation. Motivation is achieved by introducing economic models within the framework of economic questions that students can answer. Understanding is aided by description of techniques, clear interpretations and appropriate applications. Learning is reinforced by doing, with worked examples in the text and end of chapter exercises. By using an intuitive approach, students are shown how economic data are used with economic and statistical models as a basis for estimating key economic parameters, testing economic hypotheses and predicting economic outcomes. Many of the exercises involve the student using a sample of data and computer software to answer economic questions The book only uses essential calculus and uses economic principles at the "Principles of Economics" level. It includes an instructor's manual; an ASCII data disk for use with any statistical package; SAS and SHAZAM programs (in ASCII format for simple modification) for numerical exercises; and brief handouts for class distribution with SAS and SHAZAM commands also included in the instructor's manual and on disk.