The incubation period for the eggs of a House Wren has a normal probability distribution with a mean time of 336 hours and a standard deviation of 3. 5 hours. Before hatching, a particular House Wren egg incubated for 343 hours. What is the probability that House Wren eggs will take longer than 343 hours to hatch? 68% 95% 32% 16% 5% 2. 5%