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Please answer these two questions thoroughly and I will leave a good review

Problem # 1 1 12.5 pts 1. To test the durability of a new paint for white center lines, a highway department painted test strips across heavily traveled roads in fourteen different locations, and electronic counters showed that they deteriorated aer having been crossed by 12.5814.26 16.?8 13.65 11.5 10.83 12.64 13.37 16.20 14.96 13.5 13.1 15.66 and 14.8?millioncal's. Construct a 95% condence interval for the average amount of trafc (car crossings) this paint can withstand before it deteriorates. Problem 2 1 12.5 pts 1. Fifty-one percent of U.S college graduates consider themselves underemployed. You randomly select 250 U.S. college graduates an ask them whether they consider themselves underemployed. Find the probability that the number who consider themselves underemployed is: a) No more than 125 b) Between 100 and 125 inclusive c) No fewer than 135 (Source: Accenture)