The Office Of Student Services At A Large Western State University Maintains Information On The Study Habits Of Its Full 1 (53.21 KiB) Viewed 139 times
The Office Of Student Services At A Large Western State University Maintains Information On The Study Habits Of Its Full 2 (18.5 KiB) Viewed 139 times
The Office of Student Services at a large western state university maintains information on the study habits of its full- time students. Their studies indicate that the mean amount of time undergraduate students study per week is 20 hours. The hours studied follows the normal distribution with a population standard deviation of seven hours. Suppose we select a random sample of 190 current students. What is the probability that the mean of this sample is between 19.25 hours and 21.0 hours? 2
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