After 9 17 9 20 2 21 15 22 6 Before 4. Obstacle Course Times An obstacle course was set After up on a campus, and 8 randomly selected volunteers were given a chance to complete it while they were 9. Pulse R being timed. They then sampled a new energy drink compare and were given the opportunity to run the course again. there wa The "before" and "after" times in seconds are shown. Is domly se there sufficient evidence at a = 0.05 to conclude that the ber of be students did better the second time? Discuss possible cant diff reasons for your results. the P-val Student 2 3 4 5 6 for the di Before 67 72 80 70 78 82 69 75 Twin A After 68 70 76 65 75 78 65 68 Twin B