SOLVED: One of the music industry's most pressing questions is: Can paid download stores contend nose-to-nose with free peer-to-peer download services? Data gathered over the last 12 months show Apple's iTunes was used by an average of 1.54 million households with a sample standard deviation of 0.60 million family units. Over the same 12 months, WinMX (a no-cost P2P download service) was used by an average of 2.17 million families with a sample standard deviation of 0.31 million. Assume the popu

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