
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN: 9780547587776
Author: HOLT MCDOUGAL
Publisher: HOLT MCDOUGAL
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mp3 ownership- an mp3 manufacturer claims that 65% of teenagers 13 to 16 years old have their own mp3 players. a researcher wishes to test 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.
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