Question

Last week, 108 cars received parking violations in the green parking lot. Of these, 27 had unpaid parking tickets from a previous violation. Assuming that last week was a random sample of all parking violators, find the width of the 90 percent confidence interval for the percentage (correct to four decimal places) of parking violators that have prior unpaid parking tickets. Note: When reporting your answer, for example, if Minitab calculates a proportion of 0.5000, please input 50.00 without the % symbol.

Answer 1