=+5. For each of the following situations, find the critical value(s) for z or t.

a) H0: p = 0.3 vs. HA: p ≠ 0.3 at a = 0.05.

b) H0: p = 0.5 vs. HA: p 7 0.5 at a = 0.05.

c) H0: m = 12 vs. HA: m ≠ 12 at a = 0.05; n = 35

d) H0: p = 0.4 vs. HA: p 7 0.4 at a = 0.01; n = 245

e) H0: m = 20 vs. HA: m 6 20 at a = 0.01; n = 1000