Calculate the lower and upper limits of the 95% confidence interval for a sample of N = 28 with a mean 
= 16.39 and standard error of the mean 
= .91.
a. (14.52, 18.26)
b. (14.84, 17.94)
c. (13.87, 18.91)
d. (13.43, 19.35)
a. (14.52, 18.26)
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