# Math Help - Hypothesis testing. Test statistic = Critical value?

1. ## Hypothesis testing. Test statistic = Critical value?

Hi, would appreciate if anyone could answer this for me. Can't seem to find a solid answer in my textbooks.

1) What are the chances that a test statistic "z" or "t" value could equal the critical value.

2) If this is possible, do you accept or reject the null hypothesis then?

So your rejection region is usually in the form: $z \leq -z_{\alpha/2}, \ z \geq z_{\alpha/2}$ and $t \leq -t_{\alpha/2, n-1} \ t \geq t_{\alpha/2, n-1}$ (for a two tailed test).