8.46 Sample size for tossing a coin. Refer to Exercise 8.39 where we analyzed the 10,000 coin tosses made by John Kerrich. Suppose that you want to design a study that would test the hypothesis that a coin is fair versus the alternative that the probability of a head is 0.51. Using a two-sided test with α = 0.05. what sample size would be needed to have 0.80 power to detect this alternative?