Many people Consider their smart phone to he essential' Communication, news, Internet, entertainment, photos, and Jusi keeping current are all conveniently pusslble with a smart phone. However, the battery better he charged or the phone is useless. Battery life or course depends on the Frequency, duration, and type of use. One study involving heavy use ufthe phones showed the mean cf the battery life to be 13.75 hours with a standard deviation 0F2.1 hours Then the battery needs to he recharged. Assume the battery life between charges is normally distributed. IA USE SALT (a) Find the probability that with heavy use, the battery life exceedE 14 hours. (Round your answer to faur decimal places.) (in) Van are planning your recharging schedule so that the probability your phone wtll die is no more than 5%. ARer how many hours should you plan to recharge your phone? (Round your answer to the nearest tenth of an hour.) hours