Activity (2 POINTS LACI! Direction: Find the critical value, given the information below 1, One-talled test: variance is known, a In. D = 0.05, n = 35 2. Two-tailed test; variance is known, a = 0.05, n =40 One-tailed test, variance is unknown, a = 0.05, n= 15 Two tailed test; variance is unknown, a = 0.05, n = 20 5. One-tailed test; variance is known, a = 0:01, n = 50 Two-called test; variance is known, a = 0.01, n = 40 One tailed test; variance is unknown, a = 0.05, n = 25 Two-talled test, variance is unknown, a = 0.10, n = 18 9 One tailed test, variance is known, a = 0:08, n = 55 10. Two-tailed test; variance is unknown, a = 0.09, n = 280