The data in CommuteAtlanta (see Data 3.3 on page 193 for more description) contain a variable that identifies the sex of each commuter in the Atlanta sample. Test at a 5% level whether there is a difference in mean commute time between female and male commuters in Atlanta.

Data 3.3 on age 193

What is the average commuting time for people who live and work in the Atlanta metropolitan area? It’s not very feasible to contact all Atlanta residents and ask about their commutes, but the US Census Bureau regularly collects data from carefully selected samples of residents in many areas. One such data source is the American Housing Survey (AHS), which contains information about housing and living conditions for samples from the country as a whole and certain metropolitan areas. The data in CommuteAtlanta includes cases where the respondent worked somewhere other than home in the Atlanta metropolitan area. Among the questions asked were the time (in minutes) and distance(in miles) that respondents typically traveled on their commute to work each day.