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An educational research group wants to know how many hours college students spend studying outside of class per week. If they survey 100 students and

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An educational research group wants to know how many hours college students spend studying outside of class per week. If they survey 100 students and find an average 10.5 hours of studying a. week, with a standard deviation of 2.25, find a 98% confidence interval for the true average number of hours spent studying. 10.5 +.225 10.5 +.482 10.5+.324 10.5 +.524

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