Transportation engineers determined that to help ease traffic, they would set up tolls for solo drivers during rush hour times on Route 74 inside the the Capital Beltway. Carpooling drivers with the proper quick pass would drive free. The toll program began in December 4, 2017. To test the claim that fewer vehicles would use Route 74 after the program began, a count of the number of vehicles were collected from two random samples. Both samples were taken on the first Monday of each month for an entire year before and after the toll program was implemented. We will use = 0.05 in this investigation.

a)

State the null and alternative hypotheses using correct notation.