2. Retention Test Scores A random sample of non- English majors at a selected college was used in a study to see if the student retained more from reading a 19th-century novel or by watching it in DVD form. Each student was assigned one novel to read and a different one to watch, and then they were given a 100-point written quiz on each novel. The test re- sults are shown. At a = 0.05, can it be concluded that the book scores are higher than the DVD scores? Book 90 80 90 75 80 90 84 DVD 85 72 80 80 70 75 1 80