Improving SAT Scores A tutoring agency believes that by completing a special course, students can improve their critical reading SAT scores. In part of a study, 12 students take the critical reading part of the SAT, complete the special course, then take the critical reading part of the SAT again. The students’ scores are shown below. At is there enough evidence to conclude that the students’ critical reading SAT scores improved? Student 7 8 9 10 11 12 Score on first SAT 538 207 205 351 360 251 Score on second SAT 708 253 399 350 480 303