Use Table K to determine whether the null hypothesis should be rejected.

1. w_s = 13, n = 15, = 0.01, two-tailed
2. w_s = 32, n = 28, = 0.025, one-tailed
3. w_s = 65, n = 20, = 0.05, one-tailed
4. w_s = 22, n = 14, = 0.10, two-tailed

Use the table K from statistics and find the answer