Question

The weights (in pounds) at birth of five randomly chosen baby Orca whales were found to...

The weights (in pounds) at birth of five randomly chosen baby Orca whales were found to be:

425, 454, 380, 405, 426.


a.) Which graph would you create to show that this data comes from a population with a Normal distribution?

b.) In this case, does the data come from a population with a Normal distribution? Yes or No? Justify your answer.

c.) Conduct an appropriate hypothesis test to show that the mean weight of baby Orca whales is less than 450 pounds. Use α = 0.01 as your significance level. Clearly label all steps of your hypothesis test.

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