Question: The time that it takes a randomly selected job applicant to perform a certain task has a distribution that can be approximated by a normal

The time that it takes a randomly selected job applicant to perform a certain task has a distribution that can be approximated by a normal distribution with a mean value of 120 seconds and a standard deviation of 20 seconds. The fastest 10% are to be given advanced training. What task times qualify individuals for such training?

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