MP3 Ownership An MP3 manufacturer claims that 65% of
Chapter 8, Problem 12(choose chapter or problem)
MP3 Ownership An MP3 manufacturer claims that 65% of teenagers 13 to 16 years old have their own MP3 player.Aresearcher wishes to test the claim and selects a random sample of 80 teenagers. She finds that 57 have their own MP3 players. At a_0.05, should the claim be rejected? Use the P-value method. (84)
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