SOLUTION: You are studying wolves in the wilderness. The weights of wolves in the area are normally distributed with standard deviation 11 pounds. How large a sample must you take to be 93%

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Question 805465: You are studying wolves in the wilderness. The weights of wolves in the area are normally distributed with standard deviation 11 pounds. How large a sample must you take to be 93% certain that the sample mean will be within 8 pound of the population mean weight of wolves in the study region?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
You are studying wolves in the wilderness. The weights of wolves in the area are normally distributed with standard deviation 11 pounds. How large a sample must you take to be 93% certain that the sample mean will be within 8 pound of the population mean weight of wolves in the study region?
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n = [z*s/E]^2
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n = [1.8119*11/8]^2 = 6.2070
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n = 7 when rounded up
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Cheers,
Stan H.
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