A scientist has a hypothesis that as the number of police cars is increased on a roadway, the proportion of cars speeding decreases. He finds that at police car level X1 (one police car per 100 miles), the proportion of cars speeding is p=0.83 . At police car level X2 (one police car per 50 miles), the proportion of cars speeding is p=0.61 . At police car level X3 (one police car per 25 miles), the proportion of cars speeding is p=0.39. Should the hypothesis be rejected or should it fail to be rejected?
A:Rejected, because the data do not support the hypothesis that as the number of police cars per mile increases, the proportion of cars speeding decreases
B:Fail to be rejected, because this was an experimental study and the hypothesis is always confirmed in this form of study
C:Fail to be rejected, because the proportion of drivers speeding goes down as the number of police cars per mile on a roadway increases
D:Rejected, because one of the limits of an experimental study such as this is that causation cannot be made between the variables
