Question 395934: I am looking to solve this problem.
I do not know what the difference between these are:
Is this the right answer to this (2.326*500/10)² = 13,525.69
or would this be the way to do this ((2.326*500)/10)² =
Looking to find the number to survey, using 98% confidence level and a deviation of 500 and be wtihin 10 plus or minus.
Thanks
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! I do not know what the difference between these are:
Is this the right answer to this (2.326*500/10)² = 13,525.69
or would this be the way to do this ((2.326*500)/10)² =
Looking to find the number to survey, using 98% confidence level and a deviation of 500 and be wtihin 10 plus or minus.
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Since E = z
n = [z*s/E]^2
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n = [2.326*500/10]^2
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n = 13525.69..
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Round up to 13,526
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Cheers,
Stan H.
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