---
type: sc
knit: rqti::render_qtijs
---

# question

An alpha error of 5% means that:

- There is a 5% probability that you will mistakenly reject the null hypothesis, 
when it is actually correct. <!-- First option is treated as the correct one by 
default. -->
- There is a 5% probability that the null hypothesis is correct.
- There is a 5% probability that you will mistakenly reject the alternative 
hypothesis, when it is correct.
- The test power is 95%.

# feedback

The correct interpretation is:

There is a 5% probability that you will mistakenly reject the null hypothesis, 
when it is correct.

This is based on the typical understanding of a 5% significance level in
hypothesis testing, which means that you are willing to accept a 5% chance of
making a Type I error.
