Marital name changing. Refer to the Advances in Applied Sociology (Nov. 2013) study of marital name changing, Exercise 4.78

(p. 241). Recall that the probability that an American female will change her last name upon marriage is .9. In a sample of 500 European females, suppose researchers find that fewer than 400 changed their last name upon marriage. Make an inference about the probability that a European female will change her last name upon marriage.