SOLUTION: Find the margin of error.
95% confidence interval; n = 91 ; = 55, s = 5.4
How do I solve this with a calculator?
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Question 1053512: Find the margin of error.
95% confidence interval; n = 91 ; = 55, s = 5.4
How do I solve this with a calculator?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Need to know re Margin of Error:
ME =±
0r
ME =±
|In this ex, with info given
95% confidence interval
ME =±
z = invNorm( 95 +.05/2) 0r z =invNorm(.05/2)
z = ± 1.96
ME = ± ***
95% confidence interval
55 ± ME
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