Question

Practices less than 5 hours a week Practices more than 5 hours a week
Music Competition Level 1–3 23 9
Music Competition Level 4 or Higher 10 18
Total 33 27
High school juniors were asked about how many hours a week they practice their musical instruments to prepare for a musical competition. The study included 60 participants, and its intent was to see if there was a difference between competition levels of 1 to 3 and levels 4 or higher. The results are summarized in the table. Which statement is a correct association that can be made based on the data provided?

(1 point)
Responses

If a student practices more than 5 hours, they are more likely to be at a competition level of 1–3.
If a student practices more than 5 hours, they are more likely to be at a competition level of 1–3.

All students are more likely to get a competition level of 4 or higher with less than 5 hours of practice.
All students are more likely to get a competition level of 4 or higher with less than 5 hours of practice.

There is no association between the competition level and the number of hours of practice.
There is no association between the competition level and the number of hours of practice.

There is an association between the competition level and the number of hours of practice.
There is an association between the competition level and the number of hours of practice.

Answer 1

There is an association between the competition level and the number of hours of practice.

Reason: For students practicing >5 hours, 18/27 = 66.7% are level 4 or higher (vs. 33.3% at level 1–3). For students practicing <5 hours, only 10/33 = 30.3% are level 4 or higher (vs. 69.7% at level 1–3). This shows practice time is associated with competition level.