In this lesson, students use the Information Gap format to acquire information and analyze data from an experiment. In the optional activity, students use a z-score and a table of values to find the area under a normal curve within an interval. The activity is optional since it is necessary only if technology is unavailable to find these areas.

Students must reason abstractly and quantitatively (MP2) when they understand the statistics in context. Students also attend to precision (MP6) by considering the questions they need to ask in order to get information to analyze the experimental data. Students use a normal distribution to model data from randomized regroupings of data from an experiment (MP4) to determine whether there is evidence that the treatment causes an effect on the response variable.