The South African mathematician John Kerrich, while a prisoner of war during World War II, tossed a coin 10,000 times and obtained 5,067 heads.
Is this significant evidence that Kerrich’s coin comes up heads is not 0.5? Test at a 5% significance level and summarize your results.
Calculate the standard error for the proportion.
Calculate the z-score for the problem.
Locate and calculate the p-value for the given problem.
Using a 5% alpha level, is this result significant?