SOLUTION: Find n, given that we wish to estimate μ to within 10 units, with 95% confidence, and assuming that σ=100.

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Question 1176528: Find n, given that we wish to estimate μ to within 10 units, with 95% confidence, and assuming that σ=100.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi

ME =+z%2Asigma%2Fsqrt%28n%29
 +n+=+%28%28z%2Asigma%29%2FME%29%5E2 = (1.96*100/10) = 19.6  0r n = 20

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