Exercise 2.65 described a survey of the business school graduates undertaken by a university placement office. The respondents reported (among other questions) gender (1 = Female, 2 = Male) and area of employment (1= Accounting, 2 = Finance, 3 = General management, 4 = Marketing/sales, 5 = Other). Can we infer from the data that female and male graduates differ in their areas of employment?