15. Weights of Turtles The weights of turtles caught in two different lakes were measured to compare the effects of the two lake environments on turtle growth. All the turtles were the same age and were tagged before being released into the lakes. The weights for n 510 1 tagged turtles caught in lake 1 and n 58 2 caught in lake 2 are listed here:

Do the data provide sufficient evidence to indicate a difference in the distributions of weights for the tagged turtles exposed to the two lake environments? Use the Wilcoxon rank sum test with a 5.05.

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12 Lake 2 Weight (grams) 399 430 394 411 416 391 396 456 360 433 345 368 399 385 351 337 354 391