Police set up an auto checkpoint at which drivers are stopped and their cars are inspected for safety problems. They find that 14 if the 134 vehicles stopped have at least one safety violation. a) Find a 98% confidence interval for the proportion of drivers in the county that have vehicles with at least one safety violation. Do not make these calculations by hand. Instead, use the 1 PropZlnt command in your graphing calculator found under STAT TESTS. Write out what you entered in your calculator.
b) Use your interval to find the margin of error associated with this confidence interval.
c) Interpret your interval above in the context of this problem.