Two Different Students Conduct a Coin Flipping Experiment with a Left-Tailed

Essay

Two different students conduct a coin flipping experiment with a left-tailed alternative.The obtain the following test statistics:
Student $\# 1 : \mathrm { z } = - 2.05$ Student $\# 2 : \mathrm { z } = - 1.28$ Which of the test statistics has a smaller p-value and why?