1 pts A teacher wants to see if a new unit on fractions 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? The test statistic is -0.15. What would be the p-value? Student 1 2 3 4 5 Pre-test 15 14 15 19 14 Post- Test 19 13 12 20 18 Op-value less than 0.001 O p-value greater than 0.10 O p-value less than 0.002 O p-value greater than 0.05