Ramp metering is a traffic engineering idea that requires cars entering a freeway to stop for a certain period of time before joining the traffic flow. The theory is that ramp metering controls the number of cars on the freeway and the number of cars accessing thefreeway, resulting in a freer flow ofcars, which ultimately results in faster travel times. To test whether ramp metering is effective in reducing traveltimes, engineers conducted an experiment in which a section of freeway had ramp meters installed on theon-ramps. The response variable for the study was speed of the vehicles. A random sample of 15 cars on the highway for a Monday at 6 p.m. with the ramp meters on and a second random sample of 15 cars on a different Monday at 6 p.m. with the meters off resulted in the following speeds(in miles perhour).

Ramp_Meters_On Ramp_Meters_Off

28 24

39 33

42 47

36 28

42 38

49 25

32 38

47 38

55 22

27 51

55 43

26 30

51 18

40 40

46 41

Find the P-Value

Round to the nearest 3 decimal places