The weights of American newborn babies are normally distributed with a mean weight of 119.54 ounces and a population standard deviation of 0.66 ounces. In a random sample of 10 newborn babies, the mean weight was calculated to be 119 ounces.. Please assist me with the lay out to find the probability that in a random sample of 10 newborn babies the mean weight is more than 120.3 ounces