5. Lengths of Major U.S. Rivers A researcher wishes to see if the average length of the major rivers in the United States is the same as the average length of the major rivers in Europe. The data (in miles) of a sample of rivers are shown. At a = 0.01, is there enough evidence to reject the claim? Assume o, = 450 and o, = 474. United States Europe 729 560 434 481 724 820 532 357 505 360 865 329 332 450 2315 1776 1122 496 330 410 1036 1224 634 230 329 800 447 1420 326 626 600 1310 652 877 580 210 252 600 1243 605 360 447 567 525 926 722 824 932 850 310 430 634 1124 1575 405 2290 454 532 375 565 1979 259 710 545 675 300 470 425

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