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The mean score on a biology exam taken by all undergraduate students in a college in a particular year is 67.8 with a standard deviation of 11.5. The standard error of the mean for a sample of 70 students is ______? And the margin of error of the mean is ____?

Respuesta :

nobillionaireNobley
Standard error = standard deviation/sqrt(sample size) = 11.5/sqrt(70) = 1.375
Margin of error = 67.8 + or - 1.375
dakotacsey03

Standard error = standard deviation/sqrt(sample size) = 11.5/sqrt(70) = 1.375

Margin of error = 67.8 + or - 1.375