Maria is a truck driver. She has two routes for her delivery from the production facility to the distribution center (Route A or Route B). Traffic between the two points is terrible so she would like to compare the two routes. After collecting data from GPS history she learns that, on a typical delivery, the travel times across these routes can be well approximated as normal distributions with the following properties:

Route A: MA =54 minutes, 0= 6 minutes Route B: MB =60 minutes. Op = 3 minutes