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A Random Sample of 250 Students at a University Finds 15.6±.32415.6 \pm .324

Question 49

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A random sample of 250 students at a university finds that these students take a mean of 15.6 credit hours per quarter with a standard deviation of 2.2 credit hours. Estimate the mean credit hours taken by a student each quarter using a 98% confidence interval. Round to the nearest thousandth. A) 15.6±.32415.6 \pm .324
B) 15.6±.21915.6 \pm .219
C) 15.6±.02115.6 \pm .021
D) 15.6±.01415.6 \pm .014

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