A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spend studying per…. A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spend studying per week. Based on a simple random sample, they surveyed 45 students. The survey showed that students studied an average of 18 hours per week with a standard deviation of 8 hours.A national study found that students studied, on average, 15.0 hours.You hypothesize that students at this university study more than the national average.What is the standard error of the mean?
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