Question: A randnm sample Inf 11:?55 US cell phnne users age 13 and older in May 2011 found that the average number nf text messages sent

A randnm sample Inf 11:?55 US cell phnne users age 13 and older in May 2011 found that the average number nf text messages sent nr received per day is 41.5 messagesf'r' wii standard ems-r ahnnt 5.1. {a} State the pnpulatinn and parameter at" interest Use the infnrmatinn frnm the sample tn give the best estimate hi the population parameter. {b} Find and interpret a 95% enndenee interval for the mean number nf text messages

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