Mean of 9.75 hours, standard deviation of 2.3 hours
A. Find the probability that with heavy use, the battery life exceeds 10 hours
B. You are planning your recharging schedule so that the probability your phone will die is no more than 5%. After how many hours should you plan to recharge your phone?
news, Internet, entert photos, and just keeping current are all conveniently possible with a smart phone. However, the batter
news, Internet, entert photos, and just keeping current are all conveniently possible with a smart phone. However, the battery better be charged or the phone is useless. Battery ife of course depends on the frequency, duration, and type of use. One study involving heavy use of tm phone, showed the n an o, the battery ilo to be 9 7 hours with a standard dewition of 2.3 hours. Then the battery needs to be recharged. Assume the battery be between charges is normally distrbuted (a) Find the probablity that with heavy use, the battery life exceeds 10 hours. (Round your answer to four decimal places) b you ae plam g your recha ng schedile so that the probal dry your phone wil de is no more than 5%. After how many hours should you plan to recharge your phone? X hours