Assume you are an Intern at Consumer Reports Magazine assigned the claim from Apple that the average battery life length for the new least 8 hours on 4G with standard usage. You find all the IPhone dis centers and select five IPhones from each totaling 25 IPhones for yo You test the batteries of your total of 25 phones and get the followit battery length before charging was required (in hours): 4.5 6 8 5.5 7 5 7.7 6 8.5 7.5 5 9 8 6.5 5 7 8 6.5 5.5 6 6.5 8.5 5 5.5 7.5