4. A randomly selected apple from the Cal Poly Orchard weighs 4.9 oz. on average, with a standard deviation of 0.3 oz. However, the distribution of the weights of apples is unknown. The apples are packed into crates of 60 apples each. The apples are randomly and independently selected from the Cal Poly Orchard. What is the probability that the total weight of the apples in a crate exceeds 300 oz?