B. Given the a value and the z value. Indicate whether the decision is to reject or to accept the null hypothesis for each of the following: 1. a = 0.05, z = 3.7, two-tailed 2. a = 0.01, z = -1.98, two-tailed 3. α = 0.01, z = -0.77, one-tailed 4. a = 0.05, z = 2.2, one-tailed 5. a = 0.01, z = -2.2, two-tailed