I wonder if cab drivers that are immigrants get tipped less than Canadian-born drivers. I calculate the average tip % for 5 drivers that are immigrants and 5 Canadian-born drivers and get the following data:

ImmigrantsCanadian-born

15%21%

12%10%

11%13%

17%14%

11%18%

Run the appropriate statistical analysis, tell me which analysis you chose, and explain your results.

For the previous question about drivers, name two factors/variables that you would need to control for in your study?