A city planning department wants to estimate the average daily commute time for all adult residents of the city. A researcher conducts a survey by interviewing 200 people exiting a major subway station in the downtown business district between 8:00 AM and 9:00 AM on a Tuesday. The average commute time reported by these individuals is 35 minutes. Which of the following is the most accurate critique of this sampling method?
The sample is too small to accurately represent the commute times of an entire city's adult population.
The sampling method is flawed because it only includes individuals who use public transportation and are likely commuting to the downtown area during peak hours, leading to a biased estimate.
The survey provides a reliable estimate of commute times for individuals who work in the downtown business district.
The estimate of 35 minutes is likely an overestimate of the average commute time for all city residents, as downtown commutes are typically longer.
