Alpha and Beta risks


Is beta risk dependent on the alpha risk? If alpha risk is bigger, is beta risk then smaller? Or is it only dependent on size of the sample and variability.. I'm getting really confused:/

Thanks for your help!


Not a robit
You need to provide more details and context. I am going to guess you are writing about Type I and Type II errors but I could be wrong!


TS Contributor
@hlsmith I think that is what they intended.

@aksun Decreasing alpha (Type I error) will increase beta (Type II error). However, you can counteract that by increasing sample size, which will decrease beta.


TS Contributor
If the Null hypothesis is false, then changing alpha will affect the type II error risk.
If the Null hypothesis is true, then there is no type II error risk.

With kind regards