10. The knee velocity of a sample of skilled rowers (crew) is compared with a sample of novice rowers in a study attempting to characterize differences between skilled and novice rowers. The results of this comparison are given below: GROUP n X S Novice 8 3.82 .89 Skilled 10 4.44 .52 Is there significant evidence at the 5% level that the knee velocity of skilled rowers is greater than that of novice rowers