Calculate the 95% confidence interval for a sample of N = 25 with a mean = 4.06 and standard error of the mean = .27.

a. 95% CI = 4.06 ± .56
b. 95% CI = 4.06 ± .46
c. 95% CI = 4.06 ± .76
d. 95% CI = 4.06 ± 2.33


a. 95% CI = 4.06 ± .56

Education

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