The 95% confidence interval does not include Iii.

The 95% confidence interval does not include Iii. Students may have performed better in their second attempt because of the prep course or because they gained test-taking experience in their first attempt. Describe an experiment that would quantify these two effects. Randomly select n students who have taken the test only one time. Randomly select one half of these students and have them take the prep course. Administer the test again to all of the n students. A. Explain what the coefficient values 696.7 and 9.6 mean.