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:

(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.

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1115 865 1015 885 1594 1000 1416 1501 1310 2130 845 1540 1421 1674 375 1502 1109 1016 2265 1258 1481 1102 1910 1315 1567 1605 1018 1223 2023 1315 1940 1055 990 1269 1120 1764 1468 1260 910 1330 1512 1820 1560 1238 1085 1883 706 1452 1782 1888 1730 1608 1750 1102 1535 1642 798 1203 1203 2215 2215 1890 1522 1578 1781 1020 1270 785 2100 1792 758 1750