crystalsandoval crystalsandoval

06-10-2016
Mathematics

Answered

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%?

Verified Answer :

nobillionaireNobley nobillionaireNobley

11-10-2016

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

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