Aeronautics - My TimeKeeping X Sign On X Home Gradebook Question 9 - Wk 4 - Practice: Wk 4 E X CA https://ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Fvle.phoenix.edu%252Fultra%252Fcourses%252F_288506_1%252Fout (90% ... E Wk 4 - Practice: Wk 4 Exercises [due Day 5] i Saved Help Save & Exit Submit Check my work O Use Excel to find the critical value of z for each hypothesis test. (Negative values should be indicated by a minus sign. Round your answers to 3 decimal places.) 2 (a) 4 percent level of significance, two-tailed test. points Skipped Critical value of z Book (b) 3 percent level of significance, right-tailed test. References Critical value of z (c) 8 percent level of significance, left-tailed test. Critical value of z