Question

In a hypothesis test, we control for the probability of committing a:

A. Type I error.
B. Type II error.

Answer 1

Answer: A. Type I error.

The alpha value, aka level of significance, is the probability threshold of committing a type I error. This error happens when we reject the null but the null was correct all along.

The greek letter alpha symbol is
`\alpha`

The alpha value would be stated in the instructions or mentioned by your teacher. If not then the standard default is alpha = 0.05