A hypothesis test is conducted for H0: p = 0.2 against H1: p > 0.2 using a sample of size 50. The critical region for the number of successes, X, at the 5% significance level is X ≥ 15. If a new sample of size 100 is taken, and the significance level remains 5%, how would the critical region for X likely change, assuming a normal approximation is used?