Yoonie is a personnel manager in a large corporation. Each month she must review 16 of the employees. From past experience, she has found that the reviews take her approximately four hours each to do with a population standard deviation of 1.2 hours. LetΧ be the random variable representing the time it takes her to complete one review. AssumeΧ is normally distributed. Let x¯x¯ be the random variable representing the mean time to complete the 16 reviews. Assume that the 16 reviews represent a random set of reviews.
Find the 95th percentile for the mean time to complete one month's reviews. Sketch the graph.
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