In: Statistics and Probability
When the light turns yellow, should you stop or go through it? An article defines the “indecision zone” as the period when a vehicle is between 2.5 and 5.5 seconds away from an intersection. It presents observations of 750 vehicles passing through various intersections in Vermont for which the light turned yellow in the indecision zone. Of the 750 vehicles, 89 ran a red light.
Find a 90% confidence interval for the proportion of vehicles that will run the red light when encountering a yellow light in the indecision zone. Round the answers to three decimal places.
Find a 95% confidence interval for the proportion of vehicles that will run the red light when encountering a yellow light in the indecision zone. Round the answers to three decimal places.
Find a 99% confidence interval for the proportion of vehicles that will run the red light when encountering a yellow light in the indecision zone. Round the answers to three decimal places.