The highway patrol of a particular province is concerned about the proportion of drivers who carry their licenses. A checkpoint is set up on a major highway, and the driver of every 7th car is questioned. Assume that N = 2800 cars pass the checkpoint during the sampling period and the data are recorded below: 7th Car Response, y 1 1 2 1 3 0 4 1 5 0 400 1 400 Σley₁ = 324 Using the data given: i. Estimate the proportion of drivers carrying their licenses. [1 mark] [2 marks] ii. Estimate the total number of drivers carrying their licenses. iii. Calculate the standard error for the total number of drivers carrying their licenses. [2 marks] iv. Construct an approximate 95% confidence interval for the total number of drivers carrying their licenses. [2 marks] Hint: V(Psy) = (1-2)Psy as Psyqsy