4. Draw a nomal curve for each question (for some questions, you will need to draw two curves). Label the region of rejection and the region in which you would fail to reject the null hypothesis....

Extracted text: 4. Draw a nomal curve for each question (for some questions, you will need to draw two curves). Label the region of rejection and the region in which you would fail to reject the null hypothesis. Label each with the appropriate Z critical values (hint: each question has a different z-score). a) Cne-tailed test of significance (a= .05) b) Two-tailed test of significance (a=.05) c) Non-directional test of significance (a= .01) d) Directional test of significant (a = 01)