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Social Sciencemp3 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. PLEASE EXPLAIN STEP BY STEP
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.
PLEASE EXPLAIN STEP BY STEP
Expert Answer
It is given that 65% of teenagers have their own mp3players. a researcher wants to test claim and selects a random sample of 80 teenagers. She finds that 57 have their own mp3 players.
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That is p 0.65 ,n=80,X = 57
The sample proportion can be calculated as follows:
Thus, the sample proportion is 0.71.
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п 57 80 0.71
The null and alternative hypotheses are stated below:
Null hypothesis: The proportion of teenagers has their own mp3 players is eq...
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Ho p 0.65 Hp 0.65
Math
Statistics
Hypothesis Testing
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