Read FAQ 1.2.2 that explores how small a p-value needs to be in order for us to have strong evidence against the null hypothesis and answer the following questions.

a. What does Persi Diaconis claim to be able to do?

b. How many heads does Diaconis have to flip in a row in order for the probability of such an outcome to drop below 0.05? Is that the number you would pick for a point where you would start to become convinced that he could flip a coin and get heads every time?