The divisions of the play (signaled by the entrance/exit of the men help deepen the audiences awareness of characterization how?

Perhaps the biggest irony in the story is that the audience knows that the women have solved the murder mystery while the men remain oblivious of the truth because of their assumptions. While the men blunder about the house, they speak authoratively about their mistaken assumptions. When the men are not there, the women speak with a pragmatic wisdom about what actually happened in the house.