A spreadsheet containing data for problem 1 and 2 is available on Blackboard. 2. All the data in this homework are fictitious. Problem 1 UTire is an automotive tire company. As a quality inspector for UTire, you monitor the average life cycle of passenger car tires coming off of a production line. The following sample data (in miles) was collected when the production process was known to be in control. Each of the 7 samples consisted of 5 observations: Life Cycle (mile) Sample Number 1 2 3 4 5 1 81081 80686 78401 79125 81158 2 80743 81554 80911 79887 80279 3 78372 80480 81647 78039 80673 4 80728 78117 79704 81586 78180 5 79230 81724 79186 78198 78880 6 78645 81531 78287 81273 81884 7 80398 79196 80845 80100 78809
