Learning goals: Teacher Facing Critique and evaluate reports (orally) based on data and how the data were collected. Recognize the purposes of and differences among sample surveys, experiments, and observational studies. Understand statistics as a process for making inferences about population parameters based on data from a statistical study. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from Alg2.7 Statistical Inferences, Algebra 2.