Pls help

A teacher wants to see if a new unit on taking square roots is helping students learn. She has five randomly selected students take a pre-test and a post test on the material. The scores are out of 20. Has there been improvement? (pre- post) Student 1 2 3 4 5 Pre-test 11 9 10 14 10 Post- Test 18 17 19 20 18 The test statistic is -14.9. What is the p-value? O p-value 0.01 O p-value > 0.02 O p-value