Samples of three types of ropes are tested for breaking strength. The data (in pounds) are shown here. At α = 0.05, is there a difference in the breaking strength of the ropes? Use the Kruskal-Wallis test.

Follow this procedure:
a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
Use the traditional method of hypothesis testing unless otherwise specified.

Transcribed Image Text:

Cotton Nylon Hemp 356 303 361 405 432 378 361 399 372 363 306 304 318 322 230 432 505 487 451 380 462 531 366 372 453 488 462 467 506 527 581 497 459 507 562 571 499 475 505 561 532 501