Statistics- Find Critical Value(s); Bell-Shaped Curve

[oddjobmj]

Homework Statement

Find the critical value (or values) for the following and illustrate each using the Bell-Shaped Curve:

Numerous example such as-

1) $$\alpha$$ = 0.05, two-tailed test
2) $$\alpha$$ = 0.01, left-tailed test
3) $$\alpha$$ = 0.005, right-tailed test

Homework Equations

This is what I'm looking for. I believe the solution will be rather simple once I have some context but I was absent and am not sure where to look for how to solve these questions. Unfortunately my book doesn't have a glossary and I've re-read the chapters we were supposed to be going through to no avail. Google is yielding many results but none of which are using a variable $$\alpha$$ and because there are many different types of tests I can't figure out which one I'm supposed to use.

Thank you for your time,
Odd

EDIT:
I believe, in this case, a (alpha) stands for standard deviation. However, I'm still not sure what the standard setup of this problem would be since I'm -only- given a. Nothing more.

 

[lewando]

α (alpha) is not the standard deviation. It is the "alpha-level", or "probability of error level", or "p-value". Does this help?