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Name: An MP3 manufacturer claims that 65% of teenagers 13 to 16 years old ha
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Description: An MP3 manufacturer claims that 65% of teenagers 13 to 16 years old have their own MP3 players. A researcher wishes to test the claim and selects a random sample of 80 teenagers. She finds that 57 have their own MP3 players. At α = 0.05, should the c

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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An MP3 manufacturer claims that 65% of teenagers 13 to 16 years old have their own MP3 players. A researcher wishes to test the claim and selects a random sample of 80 teenagers. She finds that 57 have their own MP3 players. At α = 0.05, should the claim be rejected? Use the P-value method.

Required steps: 1) name given values, 2) state null and alternate hypotheses, identifying the claim, 3) verify the sample is approximately normal, 4) sketch the representative density curve, 5) compute test statistic, 6) summarize findings in a statement

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