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

a. (3.50, 4.62)
b. (3.60, 4.52)
c. (3.30, 4.82)
d. (1.73, 6.39)


a. (3.50, 4.62)

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