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Documents from the whaling industry of the Windward Islands indicate that in the 1920s, short-finned pilot whales weighed an average of 360 kg Cetologists believe
Documents from the whaling industry of the Windward Islands indicate that in the 1920s, short-finned pilot whales weighed an average of 360 kg
Cetologists believe that overhunting and depletion of prey species has caused the average weight of these whales to drop in recent years
A modern survey of this species in some waters for a random sample of 30 weights of individuals is provided in below
Form a hypothesis test to check whether pilot whales are significantly lighter today than during the 1920s
Whale_weights |
346 |
360 |
371 |
315 |
369 |
307 |
294 |
340 |
364 |
371 |
335 |
350 |
279 |
353 |
321 |
312 |
282 |
317 |
305 |
352 |
297 |
393 |
341 |
332 |
363 |
328 |
340 |
343 |
351 |
339 |
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