The Department of Industrial Engineering at a major university wants to develop an empirical model to predict the success of its undergraduate students in completing their degrees. (a) What would you use as the response or outcome variable in this study? (b) What predictor variables would you recommend using?(c) Discuss how you would collect data to build this model. Is this a retrospective study or an observational study?

Harold wrote this equation to model the level of water in a pool over time. the variable x represents time in hours. f(x) = 3,500 - 225x which statements about the situation are true? check all that apply. the water level is rising. the water level is falling. the initial level of water in the pool was 3,500 units. the initial level of water in the pool was 225 units. the pool was empty after 14 hours. the water was 2,600 units high after 4 hours.