A laptop company claims up to 11.5 hours of wireless web usage for its newest laptop battery life. However, reviews on this laptop shows many complaints about low battery life. A survey on battery...

A laptop company claims up to 11.5 hours of wireless web usage for its newest laptop battery life. However, reviews on this laptop shows many complaints about low battery life. A survey on battery life reported by customers shows that it follows a normal distribution with mean 10.5 hours and standard deviation 36 minutes. What is the probability that the battery life is less than 9.5 hours? Round your answer to four decimal places (e.g. 98.7654).