Assume that you were in science class and that next two people to come into classroom were girl five feet ten inches tall and boy five feet nine inches tall. Let each of 30 students already in class measure two new arrivals to nearest foot. Answer for both is six feet. Has repeated measurement enhanced accuracy? Assume that hypothesis to be tested was that girls are taller than boys. This time boy and the girl were each measured 30 times with ruler which read to 1,400 of an inch. Could we conclude that repeated measurements really supported hypothesis?