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16. A random sample of 250 students at a university finds that these students take a mean of 15.3 credit hours per quarter with

16. A random sample of 250 students at a university finds that these students take a mean of 15.3 credit hours per quarter with a standard deviation of 1.6 credit hours. What is the error bound of the mean for a 95% confidence level? A. 0.198 B. 0.010 C. 0.157 D. 0.013

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