Tire # Mileage 31564 27886 28822 27326 LD OOO U A W N P 31535 31880 28376 29664 25001 10 34981 11 32048 12 27672 13 31267 14 31512 15 35228 16 25089 17 32372 18 29749 19 28670 20 34683 21 34551 22 32811 23 30535 24 26741 25 30874 26 27535 27 28444 28 27504 29 3017931 28531 32 29715 33 30103 34 33841 35 28462 36 27535 37 34548 38 27165 39 28906 40 32027 41 31802 42 31878 43 31972 44 30650 45 31514 46 27820 47 34669 48 30534 49 30598 50 29459 51 28559 52 28630 53 33827 54 26831 55 28394 56 27616 57 29207 58 30024 59 29883 60 27456What is the required sample size, if the management wants to be within 250 miles of the actual population mean