State Research Question: Is the average length of songs in 2024 significantly different from the average song length, of 180 seconds, in 2020? State Hypotheses for the study: Ho: H1: Starting assumption:

1. **Define Hypotheses:**
- Null Hypothesis: H_0: \mu = 180
- Alternative Hypothesis: H_a: \mu \neq 180

2. **Collect Data:**
- Gather a sample of song lengths from 2024.

3. **Choose a Significance Level:**
- Common significance levels are 0.05, 0.01, etc.

4. **Conduct the Test:**
- Use a t-test or z-test depending on the sample size and whether the population standard deviation is known.

5. **Calculate Test Statistic:**
- Test statistic formula depends on the type of test chosen.

6. **Make a Decision:**
- Compare the p-value to the significance level to accept or reject H_0.

**Answer**: Without actual data from 2024, the hypothesis test cannot be completed.