The standard deviation for a data set is 7. The mean is 249. What is the margin of error for a confidence level of 95%?

asked Nov 5, 2017 181k views

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The standard deviation for a data set is 7. The mean is 249.

What is the margin of error for a confidence level of 95%?

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Margin of error for 95% = 1.96(mean/sd) = 1.96(249/7) = 1.96 x 35.57 = 69.72

Moefinley answered Nov 10, 2017

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