An instructor for a test preparation course claims that the course will improve the test scores of students. The table shows the critical reading scores for 14 students the first two times they took the test. Before taking the test for the second time, the students took the instructors course to try to improve their critical reading test scores. At a = 0.01 is there enough evidence to support the claim? Find the critical value(s) and identify rejection region(s)

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