Question

Z-test. How to find critical value for one tail test?

Answer 1

YOU determine the critical value by what level of alpha error… P = .05 or .01 or .001.

Then you see how the probability of the Z score on the Z table relates to your chosen level.

Answer 2

So, if the alpha level is .05 and the sample is 10, the critical value would be 1.833??