The BBC reported that red-haired women were more likely than others to choose strong passwords (Ward, 2013). How might a researcher study this? Computer scientist Cynthia Kuo and her colleagues conducted a study in which they gave passwords a score, with higher scores going to passwords that are not in “password crack dictionaries” that are used by hackers, that are longer, and that use a mix of letters, numbers, and symbols (2006). They found a mean score of 15.7 with a standard deviation of 7.3. For the purposes of this exercise, treat these numbers as the population parameters. Based on your knowledge of the z test, explain how you might design a study to test the hypothesis that red-haired women create stronger passwords than others.