Which answer best explains how to locate Polaris, the North Star? Find the Little Dipper, Ursa Minor. Polaris is the last star in the handle of the Little Dipper. From Cassiopeia follow the "W" shape of the constellation to Polaris. From the Orion constellation locate Sirius moving left along Orion's Belt. Follow the line from Sirius to Polaris. Find the Orion constellation. Make an imaginary line left through Orion's Belt to Polaris.

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.