The National Health Statitic Report decribed a tudy in which a ample of 335 one-year-old baby boy were weighed. Their mean weight wa 25. 2 pound with tandard deviation 5. 3 pound. A pediatrician claim that the mean weight of one-year-old boy differ from 25 pound. Do the data provide convincing evidence that the pediatrician' claim i true? Ue the =α0. 01 level of ignificance and the critical value method with the