SOLUTION: A study of elephants is conducted to determine the average weight of a certain subspecies of elephants. The standard deviation for the population is 1500 pounds. At a 99% level,
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Question 527808: A study of elephants is conducted to determine the average weight of a certain subspecies of elephants. The standard deviation for the population is 1500 pounds. At a 99% level, how many elephants need to be weighed so the average weight will be accurate to within 200 pounds? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A study of elephants is conducted to determine the average weight of a certain subspecies of elephants. The standard deviation for the population is 1500 pounds. At a 99% level, how many elephants need to be weighed so the average weight will be accurate to within 200 pounds?
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n = [z*s/E]^2
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n = [2.5758*1500/200]^2 = 374 when rounded up
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Cheers,
Stan H.
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