Mathematics, 28.05.2021 20:30 zairam2002
A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students study per week. Based on a simple random sample, they surveyed 144 students. The statistics showed that students studied an average of 20 hours per week with a standard deviation of 10 hours. What is the probability of finding a sample mean less than 18 hours
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A group of statistics students decided to conduct a survey at their university to find the average (...
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