NAME: Concentration Data TYPE: Experiment (I think) SIZE: 15 observations, 2 variables DESCRIPTIVE ABSTRACT: A chemist studied the concentration of a solution over time. Fifteen identical solutions were prepared. The 15 solutions were randomly divided into five groups of three, and the five sets were measured respectively, after 1, 3, 5, 7, and 9 hours SOURCES: Neter J, Kutner MH, Nachtsheim CJ, Wasserman W. Applied Linear Statistical Models. Pages 147-148. VARIABLE DESCRIPTIONS: 1. Concent (Concentration) 2. Time (in hours)