# 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

Question
4 views

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.

check_circle

Step 1

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.

Step 2

The sample proportion can be calculated as follows:

Thus, the sample proportion is 0.71.

Step 3

The null and alternative hypotheses are stated below:

Null hypothesis: The proportion of teenagers has their own mp3 players is eq...

### Want to see the full answer?

See Solution

#### Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in