Question

The times that college students spend studying per week have a distribution skewed to the right with a mean of 8.6 hours and a standard deviation of 2.8 hours. Find the probability that the mean time spent studying per week for a random sample of 16 college students would be more than 9.1 hours. Round your answer to two decimal places. Attach File Browse My Computer Browse Content Collection Browse Dropbox QUESTION 7 The GPAs of all students enrolled at a large university have an approximately normal distribution with a mean of 3.0s and a standard deviation of 0.30. Find the probability that the mean GPA of a random sample of 36 students selected from this university is between 2.85 and 3.20. Round your answer to four decimal places Attach File Browse My Computer Browse Content Collection Browse Dropbox QUESTIONS Click Save and submit to save and submit. Click Save ALL Aniceto sau allan 30 MacBook Ai. 8 7. 2 4 3

Answer 1

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