A random sample of 250 students at a university finds that these students take a...
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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. 0.198B. 0.010C. 0.157D. 0.013
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