To celebrate the end of final exams you and friends head to a favorite downtown restaurant. You find a street parking sp

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To celebrate the end of final exams you and friends head to afavorite downtown restaurant. You find a street parking spot with amaximum of two hours. If you stay longer than two hours, you riskhaving your car towed away. No one has a watch or cellphone but youremember that the average time you spent at the same restaurantover your previous 16 visits is 1.5 hours, and you estimate thesample standard deviation to be about 20 minutes. You also need tofactor in that it takes 8 minutes to walk to the restaurant and 8minutes to walk back to your car (you are very certain about thesetwo durations).
(a) One of your friends is really worried that you won’t getback to the car in time and so the car might be towed away! Doesyour friend have good reason to be worried? Test at a 5%significance level whether the mean total time will be less thantwo hours.
(b) You decide to leave the car parked at the street spot but itgets towed. What type of error have you committed?