Please help answers all these questions, thank you. For question 11 I just need the results.

11. Use the Two Proportions applet to carry out a test of significance. 12. When you shuffle, you are simulating one of the two hypotheses (null or alternative) to be true: Which one are you simulating? 13. What is the shape of your null distribution and where is its center located? Why does it make sense for the center to be located where it is