The time it takes for a statistics professor to mark his midterm test is normally distributed with
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The time it takes for a statistics professor to mark his midterm test is normally distributed with a mean of 4.8 minutes and a standard deviation of 1.3 minutes.
There are 60 students in the professor’s class. What is the probability that he needs more than 5 hours to mark all the midterm tests? (The 60 midterm tests of the students in this year’s class can be considered a random sample of the many thousands of midterm tests the professor has marked and will mark.)
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Related Book For
Statistics For Management And Economics Abbreviated
ISBN: 9781285869643
10th Edition
Authors: Gerald Keller
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