According to a Rapleaf study of 30 million social networkers, more women are on social networks and on average have slightly more friends than men. Suppose you want to validate these results by taking your own sample in a new social networking site. Th e following data represent the number of friends people have in the new social network. Th e samples are independent. Use a Mann–Whitney U test to determine whether the number of friends females have is greater than the number of friends males have. Let  0.01. Males Females 12 16 13 15 810 11 17 913 612 11 14 9 13