QUESTION 15 The distribution of the annual incomes of a group of middle management employees approximated a normal distribution with a mean of $37,200 and a standard deviation of $800. About 95% of the incomes lie between what two incomes? A $30,000 and $40,000 0 $36,400 and $38,000 O $34,800 and $39,600 CT 35,600 and $38,800 QUESTION 18 3 points Save An: Suppose a tire manufacturer wants to set a mileage guarantee on its new XB 70 tire. Tests revealed that the tire's mileage is normally distributed with a mean of 47,900 miles and a standard deviation of 2,050 miles. The manufacturer wants to set the guaranteed mileage so that no more than 10% of the tires will have to be replaced. What guaranteed mileage should the manufacturer announce? C\