SOLUTION: sample siae =400; sample mean = 44; sample standard deviation =16. what is the margin of error?
I have: 44-400/16=356/16=22.30
E=2.16/400=32/400=.2E-4 margin or error
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Question 613299: sample siae =400; sample mean = 44; sample standard deviation =16. what is the margin of error?
I have: 44-400/16=356/16=22.30
E=2.16/400=32/400=.2E-4 margin or error
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
sample size = 400; sample mean = 44; sample standard deviation = 16. what is the margin of error?
ME = z*s/sqrt(n) = 2.16*16/sqrt(400) = 1.728
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Note: I'm using z = 2.16 because you did.
You didn't post any level of confidence.
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Cheers,
Stan H.
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