Question

Suppose you ride to school with a friend and often arrive at a certain stoplight when it is red. One day she states, "It seems like this light is green only 10% of the time when we get here." You think it is more often than 10% and wants to test this. You keep track of the color (green/not green) the next 20 times you go to school and find that 4 times ( 4 / 20 = 20 % ) the light is green when you arrive. You wish to see if your sample provides strong evidence that the true proportion of times the light is green is greater than 10%. In other words, you are testing the hypothesis

Answer 1

Answer: The lights on the Traffic Stand

Explanation: From the statement above I believe in the hypothesis that most of the time when you get to the traffic light it changes to yellow before Red for the driver to halt for a stop . Exceptional cases for green is when its has passed through violet to yellow to Green that you would have the 20% assumption of green or not green whenever you go to school.