THE WEAROUT MILEAGE OF A CERTAIN TIRE IS NORMALLY DISTRIBUTED WITH A MEAN OF 35,000 AND A STANDARD DEVIATION OF 2,500 MILES. a) DETERMINE THE PERCENT OF TIRES THAT WILL LAST BETWEEN 30,750 MILES AND 38,300 MILES. b) DETERMINE THE PERCENT OF TIRES THAT WILL LAST AT LEAST 39,000 MILES. c) IF THE MANUFACTURER GUARANTEES THE TIRES TO LAST AT LEAST 30,750 MILES, WHAT PERCENT OF TIRES WILL FAIL TO LIVE UP TO THE GUARANTEE? d) IF 250,000 TIRES ARE PRODUCED, HOW MANY WILL LAST AT LEAST 39,000 MILES