30 I need help !!

ompany that students who complete their course will improve their SAT Math score. Ten members of the junior class who have had no SAT preparation but have taken the SAT once were selected at random and agreed to participate in the study. All took the course and retook the SAT at the next opportunity. The results of the testing indicated the values below. Is there signicant evidence to support the claim that there is an improvement in the SAT scores after the test prep course? 4 500 540 512 530 w he guidance ofce of a school wants to test the claim of an SAT test preparation 0