Question

Construct a stem-and-leaf display for these data. 2-15. The following data are the numbers of cycles to failure of aluminum test coupons subjected to repeated alternating stress at 21,000 psi, 18 cycles per second: 1115 1310 1567 1883 1223 375 1540 1203 2265 1792 1330 1910 1782 -1522 1055 1764 1502 1258 1315 1085 798 1270 1015 845 1674 1016 1000 10181820 1940 1890 1120 1608 1535 1781 1750 1501 1452 865 2130 1421 1109 1481 2100 1020 110215941730 1238 2023 1315 1269 1605 706 2215 1102 1578 758 1416 1560 990 1468 1512 1750 1642 785-1260 885 1888 (a) Construct a stem-and-leaf display for these data. (b) Does it appear likely that a coupon will "survive" beyond 2000 cycles? Justify your answer.

Answer 1