1 answer

You collect 53 samples of hair from baby river otters and find that they are, on...

Question:

You collect 53 samples of hair from baby river otters and find that they are, on average, 22.6 mm long, with a standard devaition of 15.2mm.

Then you collect 41 samples of hair from baby sea otters and find that they are, on average, 26.4 mm long, with a standard deviation of 11.4 mm.

Is there statistical evidence at the 0.05 significance level that the true mean of baby sea otter hair length exceeds the true mean of baby river otter hair length by more than 3 mm? Use a test of your choice.


Answers

Population mean S ye. mcan of bahy sea ottre haie ength yuel to mean of baby evee sttre hdie hength th: -4134 2. i Three .is

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