Final answer:
Katherine believes her words will inspire a city-wide strike and challenges her father, the newspaper publishers, and the entire city to listen and make a change.
Step-by-step explanation:
Katherine believes that her words and publication of the strike's message will have a city-wide strike, inspiring the newsies to take action. She challenges her father, the newspaper publishers, and the entire city to listen and make a change. Her goal is to galvanize the newsies and bring attention to their cause.