An economist takes two large random samples of people living in two different neighborhoods and asks them how many years they worked at their most recent job.

his theory is that people in the first neighborhood have lived there longer and so stay at their jobs longer.

in the first neighborhood, the sample mean was 2.4 years. in the second neighborhood, the sample mean was 0.9 year.

assuming there are no outliers or skew, do the results support the economist's theory?

select from the drop-down menus to correctly complete the statements.
since the samples were large and randomly chosen, we can use the samples to understand the populations.

because the sample mean for the first neighborhood is the sample mean for the second neighborhood, the results support the economist's theory.

1. a. smaller than
b. about the same as
c. larger than

2. a. tend to
b. do not tend to