One Tailed test

#3
Well, I believe you would reject the null since it is to the left of the critical value. My previous question wasnt about the null, but rather values. Want to make sure I have this down
 

Dason

Ambassador to the humans
#6
You would not have evidence to reject the null hypothesis. This doesn't mean that the null is true or that there is high probability that the null is true - just that you don't have evidence that the null is false.
 

Dason

Ambassador to the humans
#9
Just because you fail to reject the null definitely not mean you have an error in the data. It's possible to have errors in your data but just failing to reject the null doesn't mean that there are errors.